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HORTICULTURE 

UNIVERSITY  OF  WASHINGTON  AUTUMN  2001 


2 

SPECIAL  EVENTS 

3 

TOBY  BRADSHAW  SPEAKS  OUT 

S 

DROUGHT  TIPS  FROM  EXPERTS 

5 

CRANE  FLY.  DON'T  BOTHER  ME 

6 

CURRENT  MADRONE  RESEARCH 

7 

RARE  PLANT  CARE  AND  CONSERVATION 

8 

NEWS  FROM  NHS  AND  THE  ARBORETUM  FOUNDATION 

9 

NEWS  FROM  CUH  AND  WPA 

1 1 VOLUNTEER  NEWS  & OPPORTUNITIES 

1 2 

CLASSES  AND  PROGRAMS 

1 7 

EVENTS  CALENDAR 

1 9 

REGISTRATION  FORM 

The  Center  Burns 

With  enough  gasoline  you  can  burn  down 
anything,  even  a horticulture  center.  At  3 
a.m.  on  Monday  May  21  the  Earth  Libera- 
tion Front  ended  life  as  we  knew  it  when  it 
set  fire  to  the  office  of  geneticist  Toby 
Bradshaw  and  burned  down  the  Center  for 
Urban  Horticulture’s  original  and  largest 
building,  Merrill  Hall.  Today  only  the  foundation  remains  of  this  building  that  housed  CUH  offices, 
research  labs,  library,  and  herbarium  as  well  as  the  WSU  King  County  Master  Gardener  and  Urban 
Food  Gardener  offices. 

Though  Dr.  Bradshaw  was  the  target  (see  article  on  page  3),  more  than  40  people  were  directly 
affected,  losing  years  of  research,  personal  and  professional  papers,  books,  precious  mementos,  and  a 
sense  of  security.  Faculty,  staff,  students,  and  volunteers  are  only  now  determining  the  true  extent  of  the 
losses.  Long  hours  were  spent  throughout  June  and  July  trying  to  clean  soot  and  smoke  from  items 
salvaged  from  the  building.  Even  after  cleaning,  the  smell  of  smoke  lingers. 

Damage  to  library  books  and  files  will  take  months  to  determine.  Many  of  the  books  are  coming 
back  from  freeze-drying  and  cleaning  looking  more  like  accordions  than  manuscripts.  Thousands  of 
people  who  depend  upon  the  Center’s  library  and  programs  for  their  gardening  information  have  been 
left  bereft  by  the  firebombing  and  destruction  of  Merrill  Hall.  Those  of  us  who  worked  in  Merrill  Hall 
and  have  built  the  Center  into  what  it  was  on  May  21  are  still  suffering  from  shock,  and  have  been  set 
back  years  in  our  work. 


Support  comes  from  the  Legislature,  UW,  and  Friends 

The  State  Legislature  promised  $4.1  million  to  begin  rebuilding  Merrill  Hall,  (continued  on  page  2) 


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The  Urban  Hort  Newsletter  has  a new  look.  This  new  design  by  UW  Publications  Services  is  intended  to  bring  you  information  on  current 


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research,  good  horticultural  information,  and  the  same  wealth  of  educational  programs  and  events  as  in  the  past.  Please  mail  us  your  comments  or 
e-mail  us  at  urbhort@u.wa$hington.edu. 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


2 


dates  & times:  Friday  September  14,  2:30  to  6 p.m.;  Friday  Evening  Reception  & Lecture,  6:45 p.m.; 

Saturday  September  15,  9 a.m.  to  4 p.m. 
location:  NHS  Hall,  CUH 

fee:  The  Friday  evening  event  will  cost  $1 5 for  NHS  members,  $20  for  non-members 


Timed  ro  take  advantage  of  the  fall  planting  season,  this  plant  extravaganza  features  Washington  states 
premier  specialty  growers  who  offer  a huge  variety  of  popular,  unusual,  and  hard-to-find  plants.  These 
growers  are  available  for  advice,  consultation,  and  encouragement!  Friday  evening’s  reception  features  a rare 
plant  auction,  wine,  and  cheese  reception.  Richard  Hartlage  will  speak  on  “Bold  Visions  for  the  Garden  ”. 


dates  & times:  Two-Part  Workshop:  Wednesday  November  28,  7 to  9 p. 
9 a.  m.  to  noon 

instructor:  Designer  David  Sessions 

location:  Douglas  Classroom,  CUH 

fee:  $70;  pre-registration  required,  class  size  limited 


m.  and  Saturday  December  1, 


We  are  delighted  to  present  a very  special  two-part  class  taught  by  David  Sessions.  David  is  a floral,  interior, 
and  garden  designer  who  twice  yearly  creates  the  floral  displays  at  New  York’s  Rockefeller  Center  when  he’s 
not  traveling  to  clients  around  the  country.  Unearth  your  hidden  treasures  from  the  tool  shed,  attic,  garage, 
or  garden.  Transform  them  into  centerpieces,  wreathes,  door  swags  and  wall  hangings  that  truly  reflect  the 
gardener  in  you.  Spend  an  evening  and  morning  with  one  of  the  country’s  most  creative  designers  and  come 
away  with  a new  appreciation  of  all  the  treasures  you  already  own  and  didn’t  know  it.  Wednesday  evening  is 
a lecture.  Come  back  with  your  garden  tools  on  Saturday  morning  for  a hands-on  workshop.  Learn  how  to 
transform  your  winter-dormant  tools  into  holiday  decorations. 


Continued  from  page  1 

The  University  Provost’s  office  and  College  of  Forest  Resources  gave  generous  support  as  the  devastated 
CUH  faculty,  students,  and  staff  fought  hard  to  finish  spring  term  classes,  programs,  and  projects  while 
cleaning  up  the  mess  surrounding  them. 

Hundreds  of  volunteers  pitched  in  to  clean  irreplaceable  library  books,  slide  collections,  lab  glass, 
computers,  and  thousands  of  precious  items  salvaged  from  destroyed  offices.  Many  businesses  and 
individuals  donated  lunches,  time  and  services  to  simply  help  get  people  through  the  long  days.  All  the 
community  support  has  given  us  an  invaluable  morale  boost  that  has  helped  us  through  these  difficult 
months,  and  for  that  we  are  very  grateful.  Thank  you. 

Looking  to  the  Future 

Librarian  Val  Easton  and  her  staff  are  working  hard  to  reopen  an  interim,  scaled  down  Miller  Library 
in  CUH’s  Isaacson  Hall.  It  is  anticipated  that  the  doors  will  open  in  late  fall.  Please  check  the  library’s 
web  site  at  www.millerlibrary.org  for  updates.  The  Plant  Answer  Line  will  reopen  to  answer  gardening 
questions,  and  the  Master  Gardener  clinics  will  eventually  reopen  at  CUH  as  well.  Until  October  1, 
Master  Gardener  clinics  are  held  Mondays  from  4 until  8 p.m.  in  the  University  Village  Shopping 
Center  at  Ravenna  Gardens. 

Herbarium  specimens  will  be  housed  temporarily  in  the  basement  of  Isaacson  Hall.  Staff,  faculty, 
and  students  are  housed  on  the  east  side  of  Douglas  Conservatory  in  trailers  moved  in  shortly  after  the 


University  of  Washington 


fire.  Others  have  relocated  to  the  College  of  Forest 
Resources  on  upper  campus. 

Work  has  already  begun  to  rebuild  Merrill  Hall.  The 
search  for  an  architectural  firm  to  lead  the  design  process 
started  in  July  and  the  Miller/Hull  Partnership  was 
selected  in  August.  Hopes  are  to  create  a building  that 
embodies  the  finest  in  “green  architecture”  design 
principles.  This  is  a fitting  goal  for  a Center  devoted  to 
sustaining  natural  ecosystems  and  human-altered 
landscapes.  Please  join  with  us  as  we  rebuild. 


Bradshaw  Speaks  Out 

THE  EARTH  LIBERATION  FRONT  TARGETED  RESEARCHER  TOBY 
BRADSHAW  FOR  HIS  WORK  ON  HYBRID  POPLARS.  WE  ASKED 
DR.  BRADSHAW  TO  REPLY  TO  THEIR  ACCUSATION  THAT  HE 
“RELEASES  MUTANT  GENES  INTO  THE  ENVIRONMENT.” 


We  Need  Your  Help 


The  Center  for  Urban  Horti- 
culture needs  your  support  as 
we  rebuild.  Please  send 
donations  to  the  Urban  Hort 
Recovery  Fund,  c/o  The  CFR 
Development  Office,  Box 
352 1 00,  Seattle,  WA  98  I 95. 


The  late  Carl  Sagan  had  a gift  for  helping  the  public  to  understand  and  appreciate  science.  He  is  sorely 
missed.  Sagan  had  this  to  say  in  his  book  The  Demon-Haunted  World: 

We’ve  arranged  a global  civilization  in  which  the  most  crucial  elements  — transportation,  commu- 
nications, and  all  other  industries;  agriculture,  medicine,  education,  entertainment,  protecting  the 
environment;  and  even  the  key  democratic  institution  of  voting  — profoundly  depend  on  science 
and  technology.  We  have  also  arranged  things  so  that  almost  no  one  understands  science  and 
technology.  This  is  a prescription  for  disaster.  We  might  get  away  with  it  for  a while,  but  sooner  or 
later  this  combustible  mixture  of  ignorance  and  power  is  going  to  blow  up  in  our  faces. 

Sagan’s  prophecy  came  true  in  a sickeningly  literal  way  for  us  when  the  Earth  Liberation  Front 
firebombed  Merrill  Hall.  I was  targeted  by  the  ELF  firebomb  because  they  allege  that  I am  “the  driving 
force  in  G.E.  [genetically  engineered]  tree  research,”  and  that  as  part  of  my  research  I “unleash  mutant 
genes  into  the  environment  that  is  [sic]  certain  to  cause  irreversible  harm  to  forest  ecosystems.” 

But  members  of  the  ELF  are  as  ignorant  as  they  are  malevolent.  I have  never  genetically  engineered 
a tree,  much  less  released  one  into  the  environment.  My  work  in  plant  genetics,  including  trees,  has 
relied  upon  traditional  cross-pollination  coupled  with  studies  of  DNA.  My  only  goal  is  to  better 
understand  how  the  natural  world  works.  Like  all  my  scientific  colleagues,  I hope  this  leads  to  practical 
applications  that  benefit  humanity  and  our  environment.  But  it  is  simple  curiosity  that  motivates  me, 
and  scientific  discovery  that  gives  me  the  greatest  thrill. 

Let  me  be  clear  about  plant  genetic  engineering.  I strongly  endorse  the  genetic  engineering  of 
plants  for  research.  For  the  past  twenty  years,  genetic  engineering  has  been  a standard  method  used  by 
thousands  of  plant  biologists  who  investigate  the  function  of  genes.  Without  genetic  engineering  we 
would  not  know  the  details  of  how  plants  respond  to  light,  produce  flowers,  or  tolerate  cold  and 
drought. 

I plan  to  use  genetic  engineering  for  my  own  research,  and  have  recently  obtained  some  genetically 
engineered  (GE)  aspen  hybrids  from  Steve  Strauss  and  Rick  Meilan,  colleagues  of  mine  at  Oregon  State 
University. 

These  GE  trees  were  produced  by  isolating  a gene  that  we  hope  will  affect  the  number  of  branches, 
and  make  the  crown  more  efficient  at  capturing  sunlight.  The  “branching”  gene  was  isolated  from  a 
hybrid  aspen,  then  modified  in  my  laboratory  by  flipping  it  around  so  that  it  would  be  read  in  the 
wrong  direction  when  engineered  into  a tree.  This  “backwards”  gene  was  designed  ro  reduce  or  elimi- 
nate expression  of  the  tree’s  own  branching  gene,  providing  clear  evidence  whether  the  gene  does,  or 
does  not,  affect  branching.  We  are  just  beginning  to  study  these  80  GE  aspens. 

Basic  research  aside,  there  are  legitimate  scientific  and  public  concerns  about  the  planting  of  GE 
(“transgenic”)  crops  and  trees  in  our  fields  and  forests.  These  concerns  need  to  be  (continued  on  page  4) 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


Continued  from  page  3 

addressed  and  the  ultimate  decisions  about  their  commercial  use  made  using  transparent  political  and 
regulatory  processes  that  draw  upon  science. 

I feel  so  strongly  about  the  value  of  informed  public  debate  that,  more  than  a year  ago,  Steve 
Strauss  and  I organized  a symposium  on  GE  trees  that  was  held  in  July  at  Skamania  Lodge.  We  invited 

speakers  with  the  widest  possible  range  of  viewpoints, 
including  environmental  groups  with  strong 
positions  against  GE  trees,  ecologists,  economists, 
ethicists,  corporate  scientists,  government  regulators, 
and  geneticists.  The  goal  was  to  find  common 
ground  among  the  disparate  viewpoints,  and  identify 
a research  agenda  for  the  future  to  which  all  can 
agree. 

It  is  ironic,  but  not  surprising,  that  the  ELF  and 
similar  groups  violently  opposed  to  genetic  engineer- 
ing targeted  our  symposium  for  “direct  action.” 
Apparently  the  ELF  is  equally  vehemently  opposed  to 
the  freedom  of  scientific  inquiry  and  exchange  of 
ideas  among  well-intentioned  parties  on  all  sides  of 
the  debate.  Instead  of  engaging  in  rational  dialogue,  the  ELF  sets  firebombs  to  promote  its  vacuous 
slogan:  “You  cannot  control  what  is  wild.”  Their  notion  that  genetic  engineering  represents  some  sort 
of  unprecedented  assault  on  the  environment  by  humans  is  absurd. 

Humans,  like  all  other  life  forms  on  earth,  actively  manipulate  their  environment  to  promote  their 
4 own  survival,  often  at  the  expense  of  other  organisms.  The  simple  acts  of  weeding  a flower  bed, 

hybridizing  two  rhododendrons,  planting  a non-native  perennial  in  an  urban  landscape,  or  building  a 
house  are  everyday  examples  of  humans  controlling  what  is  wild.  But  we  are  as  much  a part  of  nature  as 
leaf-cutting  ants  that  cultivate  fungi  in  underground  gardens,  hummingbirds  that  move  pollen  between 
different  plant  species,  fruit  bats  that  disperse  seeds  far  from  their  point  of  origin,  or  termites  that 
build  elaborate  air-conditioned  mounds  in  which  to  live.  Indeed,  genetic  engineering  of  plants  was 
“invented"  by  bacteria  millions  of  years  ago,  and  many  wild  plants  carry  genes  inserted  into  their 
chromosomes  by  the  sam e Agrobacterium  now  used  by  plant  geneticists  to  shuttle  transgenes  into  GE 
crops  and  trees. 

Perhaps  ELF  members  and  their  sympathizers  should  expend  the  effort  it  takes  to  understand  the 
complex  intricacies  of  biology,  rather  than  trying  to  enforce  their  narrow,  fundamentalist  worldview  by 
setting  firebombs. 

As  Sagan  points  out,  “Both  science  and  democracy  encourage  unconventional  opinions  and 
vigorous  debate.  Both  demand  adequate  reason,  coherent  argument,  rigorous  standards  of  evidence  and 
honesty.”  I believe  we  should  have  the  freedom  to  pursue  knowledge  and  participate  in  open  debate 
without  the  fear  of  an  anti-science  jihad. 

For  more  information  on  Dr.  Bradshaw’s  research,  click  on  http://faculty.washington.edu/toby/. 


ropl  3TS  are  deciduous  trees  with  heart-shaped  leaves.  Poplars  have  tiny 
seeds  attached  to  fine,  cottony  fibers,  which  can  be  carried  great  distances  on 
air  currents-hence,  the  name  “cottonwoods”.  Look  for  cottonwoods  along 
virtually  any  riverbank  in  Washington  and  Oregon,  and  along  1-5  and  1-405 
because  the  opportunistic  tree  grows  quickly  in  disturbed  sites. 

Their  ability  to  grow  in  disturbed  areas  is  one  reason  poplars  are  grown  like  a 
crop  by  a number  of  pulp  and  paper  makers. They  also  are  easy  to  grow  and 
easy  to  breed  for  characteristics  that  make  high  quality  paper.  Poplars  can  be 
readily  propagated  — sometimes  referred  to  as  “cloning”  — using  cuttings. 
Cuttings  a foot  long  and  one-half  inch  wide  from  a poplar  tree  with  the  desired 
characteristics  can  be  planted  and  will  take  root  and  sprout  new  shoots. 


Oregon  State  University 


Drought  Tips  from  the  Experts 

During  May,  the  Sustainable  Community  Landscapes  consortium  hosted  a panel  discussion  to  talk 
about  preparing  and  managing  landscapes  during  drought  periods.  Panelists  included  Peter  Dervin  of 
the  Washington  Association  of  Landscape  Professionals  (WALP),  Nota  Lucas  and  David  McDonald  of 
Seattle  Public  Utilities,  and  Tom  Hinckley,  UW  Plant  Physiologist  and  the  Director  of  the  Center  for 
Urban  Horticulture. 

The  panelists  discussed  a variety  of  scientific,  legal,  and  social  issues.  Questions  asked  of  the 
panelists  included:  (1)  What  should  people  know  about  watering  priorities  for  this  year?  (2)  What  are 
the  biggest  impediments  to  water  conservation  and  how  can  this  be  addressed?  (3)  What  kind  of  soil 
preparation  and/or  management  will  reduce  landscape  water  needs? 

The  panelists  agreed  that  although  Seattle  won’t  likely  have  mandatory  water  restrictions  this  year, 
other  regional  utilities  are  experiencing  problems.  Reducing  consumption  now  will  help  to  prevent 
future  problems.  Since  cost  and  education  are  driving  forces  in  the  landscape  industry  we  must  find  a 
way  to  balance  these  factors.  Teaching  people  about  integrated  pest  management,  natural  lawn  care,  and 
how  to  understand  and  emulate  natural  systems  is  a key  to  creating  healthy  landscapes.  The  panelists 
came  up  with  the  following  list  of  tips  to  reduce  water  use  and  improve  landscape  health: 

DROUGHTTIPS 

• Cluster  plants  according  to  their  water  needs. 

• Mulch  with  a thick  layer  of  wood  chips  or  compost.  As  a general  rule,  use  woody  mulches  for  woody 
plants  and  non-woody  mulches  for  herbaceous  plants. 

• Use  a mulching  mower  with  sharp  blades  and  adjust  the  mowing  height  for  turf  type. 

• Use  soaker  hoses  or  drip  systems  rather  than  overhead  sprinklers. 

• Water  early  in  the  morning  or  late  in  the  evening  to  reduce  evaporation. 

• Watering  infrequently  but  deeply  is  generally  better  than  frequent,  shallow  irrigation. 

• Use  rain  sensors  or  water  budgets  to  maximize  the  effectiveness  of  irrigation  systems. 

• Enhance  a plant’s  natural  water  conserving  ability  by  gradually  reducing  irrigation  prior  to  a drought. 
Reduced  growth  or  early  senescence  may  occur,  though  the  plant  should  survive. 

Crane  Fly,  Don’t  Bother  Me! 

SHARON  J.  COLLMAN,  P E S T I C I D E SI  I P M OUTREACH  COORDINATOR  FOR  E PA  REGION  10 

To  water  quality  folks,  crane  fly  larvae  are  indicators  of  good  stream  health. 
However,  a homeowner  with  a lawn  problem  will  quickly  blame  crane  flies 
and,  often  without  thinking,  apply  pesticides  to  bring  about  control. 

The  European  crane  fly  was  introduced  into  the  U.S.  in  1969  and 
quickly  gained  public  notice  when  the  larvae  stripped  many  lawns  bare.  It  is 
common  for  newly  arrived  pests  to  be  very  damaging  in  the  early  years 
because  they  arrive  without  their  co-evolved  predators  and  parasites.  Being  newcomers,  crane  flies 
received  lots  of  media  attention.  Thirty  years  later,  the  natural  enemies  such  as  soil  microorganisms, 
and  birds  have  found  crane  flies  and  now  we  only  have  normal  ups  and  downs  in  crane  fly  numbers. 

We  also  know  more  about  the  pest  crane  flies.  These  are  not  to  be  confused  with  the  many  crane 
fly  species  that  are  beneficial  in  streams,  or  work  as  decomposers  of  organic  matter  on  land.  Research 
experience  has  shown  that  healthy  turf  on  good  soil  can  withstand  high  populations  of  crane  fly  larvae. 
At  the  Washington  State  University  and  Oregon  State  University  Research  and  Extension  Centers,  turf 
scientists  Gwen  Stahnke  and  Tom  Cook  have  found  populations  as  high  as  60  to  80  larvae  per  square 
foot  in  their  plots  with  no  significant  damage  (and  turf  researchers  are  very  serious  about  their  turf). 
They  recommend  that,  in  most  cases,  homeowners  should  spend  their  efforts  on  improving  lawn 
health.  In  most  cases,  proper  fertilization  will  help  the  lawn  outgrow  any  damage.  If  homeowners  check 
their  lawns  during  late  winter  and  early  spring,  they  will  have  plenty  of  time  to  intervene  if  the  crane 
fly  starts  to  get  out  of  hand.  These  researchers  have  also  found  that  the  eggs  and  0 continued  on  page  6) 


For  more  information  about 
the  Sustainable  Community 
Landscapes  group  and 
upcoming  meetings,  visit 
their  web  page  at  http:lldepts, 
washington.edu/mulchl 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


Continued  from  page  5 

young  larvae  are  very  susceptible  to  dry  soil  conditions  in  the  fall.  One  recommendation  is  to  withhold 
water  to  lawns  during  mid  August  to  mid  September. 

A far  more  serious  problem  has  developed.  With  pest  crane  fly’s  high  media  profile,  the  public  has 
come  to  know,  and  to  blame,  crane  fly  for  ANY  lawn  problem.  Consequently,  excessive  and  unneces- 
sary pesticides  are  being  applied  and  they  are  showing  up  in  urban  streams.  The  common  pesticides 
used  on  crane  flies  have  been  diazinon  (which  has  caused  several  bird  kills)  and  dursban. 

To  improve  communication  about  crane  flies,  researchers,  educators,  and  regulators  in  the  Pacific 
Northwest  (Environmental  Protection  Agency,  Washington  State  University  and  Oregon  State  Univer- 
sity researchers  and  Cooperative  Extension  agents,  Washington  and  Oregon  Departments  of  Agricul- 
ture, and  other  area  specialists)  are  collaborating  to  share  information  via  a new  website.  The  website 
covers  basic  information  on  crane  fly  identification  and  management,  current  research  reports,  techni- 
cal references,  photos  and  information  on  how  to  join  a discussion  list  on  pest  crane  flies.  This  infor- 
mation is  available  at  http://whatcom.wsu.edu/cranefly. 

Where  lawn  damage  is  observed,  check  carefully.  It  is  possible  the  lawn  is  suffering  from  lack  of 
water,  drought  or  heat  intolerant  grasses  or  from  lawn  diseases  — many  of  which  also  can  be  controlled 
by  good  lawn  care. 

“Target  the  pest,  and  protect  the  rest”. 


6 


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Seattle’s  many  unstable  hillsides  tend  to  slide 
when  soils  become  saturated,  making  anything 
that  reduces  soil  moisture  “to  the  good.”  A small 
study  using  trees  in  6-gallon  pots  found  mad- 
rones  to  transpire  more  water  (per  unit  of  leaf 
surface  area)  than  Douglas-fir,  western  red-cedar, 
or  western  hemlock.  Further,  during  the  winter 
the  madrones  transpired  at  approximately  10  percent  of  their  summertime  rates,  while  conifer  transpi- 
ration was  much  less.  The  high  transpiration  rate  of  madrones  is  not  trivial  and  could  reduce  the 
likelihood  of  landslides.  The  results  are  consistent  with  madrones  being  not  only  adapted  to  dry  sites 
but  helping  to  keep  sites  dry  by  heavy  transpiration,  perhaps  as  a competitive  strategy  that  makes  sites 
less  suitable  for  other  species. 


Current  Madrone 
Research 

Pacific  Madrone  and  Slope  Stability 

BY  AL  WAGAR 


Soil  Nitrogen  and  Disease  Severity  in  Pacific  Madrone  in  Several  Urban  Habitats 

BY  MARIANNE  ELLIOTT  AND  ROBERT  L.  EDMONDS 

We  examined  madrone  health  and  soil  conditions  in  particular  forms  of  soil  nitrogen  (N),  on  five  sites 
in  the  Puget  Sound  area.  We  were  interested  in  learning  how  the  soil  environment  influences  host 
susceptibility  to  the  fungal  pathogen  Nattrassia  mangifera.  The  fungus  causes  cankers  that  can  be 
debilitating  to  the  tree.  Preliminary  analysis  seems  to  indicate  an  association  between  higher  rates  of 
organic  matter  breakdown  in  the  soil  and  number  of  cankers. 


Sites  with  high  levels  of  organic  matter  had  bigger  trees,  the  soil  was  more  acid,  and  there  was  a 
higher  %N  in  the  soil  and  more  cankers.  The  increased  severity  of  disease  may  be  from  the  higher  %N 
providing  the  canker  fungus  with  a food  source.  This  would  reduce  root  colonization  by  beneficial 
mycorrhizal  fungi.  In  sites  with  trees  of  comparable  size  and  age,  the  healthiest  sites  had  soils  where 
insoluble  nitrate  concentrations  were  higher  than  soluble  ammonium.  It  appears  that  adding  organic 
matter  such  as  rich  compost  may  lead  to  increased  damage  by  N.  mangiferae. 

Soil  Factors  and  Health  of  the  Pacific  Madrone 

BY  DAVID  BERGENDORF  AND  LINDA  CH ALKER-SCOTT 

A survey  was  conducted  to  determine  if  a relationship  could  be  found  between  soil  factors  and  health 
of  the  Pacific  madrone  ( Arbutus  menziesii  Pursh).  Twenty  random  soil  samples  were  obtained  from  the 
root  zones  of  30  trees  (root  zone  is  defined  as  a circle  with  twice  the  diameter  of  the  drip  line).  Soil 
samples  were  tested  for  bulk  density,  texture  and  gravel  content.  The  trees  were  divided  into  different 
health  classes,  and  trees  in  different  health  classes  were  statistically  analyzed  for  soil  bulk  density, 
percent  clay  content  (texture),  and  percent  gravel  content. 

For  trees  in  intermediate  to  poor  health  classes,  there  was  a statistically  significant  correlation 
between  percent  gravel  in  the  soil  and  tree  health.  Soils  that  have  better  drainage  may  act  as  a buffer 
against  the  spread  of  Phytopthora  cactorum,  a fungus  causing  root  rot.  They  may  also  allow  excess 
nitrogen  to  drain  off  before  being  absorbed  by  roots.  Management  suggestions  were  to  use  coarse 
mulch  over  tree  root  zones,  keep  people  from  walking  in  root  zones,  or  using  path  material  that  will 
not  restrict  drainage. 

Rare  Plant  Care  and  Conservation 

RAM  UPDATE 

The  Rare  Care  Program  continues  to  expand  and  enjoy  success  even  considering  the  devastating  loss  of 
some  of  its  plants  in  the  Center’s  fire  in  May. 

Ex  situ  Conservation  of  Hackelia  venusta 

In  April,  Rare  Care  Program  Coordinator  Laura  Zybas  and  volunteer  Greg  Peterson  collected  wild 
tissue  of  Hackelia  venusta  with  permission  and  assistance  from  the  US  Forest  Service.  Hackelia  venusta 
is  a state-endangered  species  that  has  difficulty  setting  seed  and  only  300  plants  are  found  in  one 
location  in  the  world.  Rare  Care  has  been  working  on  tissue  culture  techniques  for  this  plant  to  aid  in 
its  recovery.  Under  Dr.  Peterson’s  guidance,  the  cultured  Hackelia  is  forming  roots!  The  next  step  is  to 
grow  the  plants  in  standard  soil  media  and  acclimate  them  for  reintroduction.  A tragic  note  to  this  is 
that  while  we  collected  tissue  from  30  wild  individuals,  we  lost  all  but  seven  in  the  fire.  We  may  lose 
even  more  due  to  post  fire  contamination. 

Conservation  of  Castilleja  levisecta 

In  March  we  hired  Crysta  Gantz  to  assist  in  the  research  by  graduate  student  Wendy  Wayne.  Wendy  is 
researching  the  best  way  to  reintroduce  the  federally  threatened  golden  paintbrush,  Castilleja  levisecta. 
Plants  are  being  grown  in  the  nursery  from  wild  collected  seed  and  given  three  different  treatments  to 
measure  survival  rates  following  planting  into  their  native  habitat.  This  experiment  is  similar  to  our 
work  with  the  same  plant  on  the  Rocky  Prairie  Preserve,  but  on  a larger  scale. 

New  Rare  Plant  Monitoring  Program 

This  spring  Rare  Care  kicked-off  the  Rare  Plant  Monitoring  Program.  We  are  working  in  cooperation 
with  the  Washington  Natural  Heritage  Program  to  collect  information  on  rare  plant  populations  that 
have  not  been  visited,  monitored,  or  located  in  the  last  few  years.  Over  the  course  of  time  these 
populations  can  decline,  be  destroyed,  or  hopefully  increase  in  size.  We  trained  27  volunteers  to 
monitor  rare  plant  populations  across  the  state  of  Washington.  Many  of  our  volunteers  are  locating  the 
populations,  recording  data  on  population  size  and  habitat  conditions,  and  noting  (continued  on  page  16) 


7 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


For  further  information  on 
the  events  listed,  call  the  NHS 
office  at  206-527-1794. 


Building  the  Award-Winning  2000 
Chelsea  Flower  Show  Exhibit 

Rosie  Atkins 
October  10,  7:30  p.m. 


The  Latest  Perennial  Planting  Trends 
from  Germany 

Anja  Maubach 
November  14,  7:30 p.m. 


Winning  rop  honors  at  the  Chelsea  Flower  Show  is 
no  small  feat.  Rosie  Atkins  is  editor-in-chief  of 
Gardens  Illustrated.  She  will  describe  the  three  years 
of  planning  and  building  that  went  into  their 
‘Evolution’  garden  that  created  a sensation  with  its 
unusual  design. 


Want  to  be  on  the  cutting  edge  of  perennial  garden 
design?  Come  hear  Anja  Maubach,  an  internation- 
ally noted  German  garden  designer,  and  fourth 
generation  nursery  owner.  She  will  speak  on  the 
latest  and  greatest  perennial  planting  styles  for  the 
new  millennium. 


Arboretum  Foundation 


For  more  information  on 
Arboretum  Foundation 
events,  please  call  the  events 
hotline  at  206-726-1954  or 
visit  the  Foundation  website 
at:  www.orgsites.com/wal 
arboretum  foundation/ 


Interested  in  Volunteering? 

Help  is  needed  for  special  events,  the  Foundation 
office,  education  programs,  and  special  projects 
around  the  Arboretum.  Call  Elaine  Anderson  at 
206-325-4510. 

Greenhouse  Plant  Sales 

Sales  at  the  Arboretum  Foundations  Pat  Calvert 
Greenhouse  continue  year-round.  Some  plants  are 
propagated  from  the  Arboretum  collection.  Every 
Tuesday,  10  a.m.  to  noon,  behind  the  Graham 
Visitors  Center. 


Fall  Winning  GardensTour 

See  seven  outstanding  private  gardens  in  the 
Snohomish  and  Monroe  areas.  These  gardens  are 
open  to  guests  one  day  only.  Saturday,  October  13, 
10  a.m.  to  4 p.m.  Call  206-726-1954  for  ticket 
information. 

Celebrate  the  Reds 

Celebrate  fall  color,  fine  wines  and  gardening  at 
Wells  Medina  Nursery  on  Saturday,  October  13, 
noon  to  4 p.m.  Call  206-726-1954  for  more 
information. 


Fall  Bulb  & Plant  Sale 

A fantastic  selection  of  favorite  and  unusual  bulbs, 
plus  plants  from  leading  area  vendors  and  nurseries. 
Sunday,  October  7,  10  a.m.  to  4 p.m.,  Graham 
Visitors  Center.  Free  parking,  no  admission  charge. 


Greens  Galore 

Freshly  cut  greens,  cones,  garlands,  wreaths  and 
more  for  holiday  decorating.  Hand-made  craft  and 
gift  items  also.  Saturday  December  1,  10  a.m.  to 
4 p.m.,  Graham  Visitors  Center. 


© University  of  Washington 


News  from  CUH  and  WPA 


Rentals  and  the  Fire 

The  recent  fire  at  the  Center  did  not  damage  the 
rental  facilities.  We  have  been  able  to  operate  on  a 
normal  schedule  since  the  first  week  after  the  arson. 
After  serving  as  a temporary  holding  facility  to  clean 
and  organize  the  Miller  Library’s  collections  hours 
after  the  fire,  NHS  Hall  has  returned  to  its  normal 
function  as  a site  for  horticultural  events,  university 
meetings,  and  social  events. 

The  technical  upgrade  of  the  Douglas  classroom 
is  complete.  There  is  now  a range  of  additional 
functions  for  use  by  the  Center’s  academic  and 
outreach  programs  and  the  horticultural  groups  that 
meet  in  the  space. 

This  fall  Isaacson  Hall  will  become  the  tempo- 
rary home  for  the  library  and  offices  during  the 
rebuilding  of  Merrill  Hall.  This  will  result  in  the  loss 
of  Isaacson  classroom  as  a meeting  and  event  space. 
The  Northwest  Horticultural  Society,  Seattle  Garden 
Club,  and  the  Puget  Sound  Mycological  Society 
have  graciously  offered  the  use  of  their  offices  as 
temporary  facilities  for  staff  displaced  from  Merrill 
Hall.  We  greatly  appreciate  their  generosity  and  help 
during  this  difficult  time. 

Finally,  Richard  Hartlage  of  the  Elisabeth  C. 
Miller  Botanical  Garden  and  Theresa  Malmanger  of 
Ravenna  Gardens  have  donated  plants  for  use  in 
several  containers  that  have  been  placed  in  the 
McVay  Courtyard  and  the  Soest  Garden.  The 
containers  were  the  result  of  a generous  donation  by 
Steve  Burgess,  professor  at  the  UW  and  neighbor  of 
the  Center.  Richie  Steffen  and  Greg  Graves  of  the 
Miller  Garden  used  their  creative  talents  to  arrange 
and  install  the  plants  in  the  containers,  and  these 
have  helped  soften  the  fire’s  visual  effect  on  the 
McVay  courtyard  and  bring  even  more  color  to  the 
ever-blooming  Soest  Garden. 

Visitors  continually  remark  on  how  good  the 
plants  in  the  courtyard  look  following  the  fire,  and 


this  is  a tribute  to  both  the  generous  donations  of 
plants  and  containers,  and  the  work  of  Center  staff 
member  Ray  Larson  and  others. 

Urban  Horticulture  Students  Set  Back 
but  Lend  a Hand 

The  work  of  many  students  was  set  back  by  the 
May  21  fire.  In  addition  to  the  destruction  of  all  lab 
and  library  facilities,  the  research  and  coursework  of 
many  was  severely  damaged.  The  end  of  the  quarter 
was  a difficult  time  for  everyone,  but  they  all  pulled 
through. 

The  students  were  remarkable  as  they  helped 
fire  recovery  efforts,  staying  until  all  hours  to  save  as 
much  as  possible.  Several  students  were  at  the  Center 
nearly  every  waking  hour  they  weren’t  in  class  during 
the  first  weeks.  Everyone  has  pulled  together,  and 
their  selflessness  has  been  extraordinary.  Our 
students  are  a credit  to  the  Center  and  have  helped 
to  keep  up  spirits  among  the  staff  and  faculty  during 
the  fire’s  aftermath. 

Graduate  student  Kelly  Dlouhy  (MS,  with 
Kern  Ewing)  was  awarded  a Masters  degree  at  the 
end  of  spring  quarter.  Kelly  studied  site  preparation 
effects  on  the  success  of  plant  species  in  wetland 
mitigation  sites. 

Taryn  Bauerle  (MS,  with  Linda  Chalker-Scott) 
was  delayed  slightly  by  the  fire,  and  will  be  complet- 
ing her  graduate  work  this  fall.  Taryn  is  studying 
comparative  mechanisms  to  control  English  ivy 
(Hedera  helix)  in  Seattle  city  parks. 

The  Center  will  welcome  14  new  graduate 
students  this  fall,  bringing  the  total  number  of 
graduate  students  to  nearly  40.  The  undergraduate 
program  continues  to  be  one  of  the  fastest  growing 
and  most  popular  in  the  College  of  Forest  Resources. 

Miller  Library  Staff  News 

The  books,  periodicals  and  other  materials  from  the 
Miller  Library  were  treated  during  the  summer  for 
water  and  smoke  damage.  In  September  the  staff  will 
be  able  to  begin  the  process  of  sorting  and  assessing 
the  total  damage  to  the  collections.  The  staff  has 
been  overseeing  the  conservation  work  and  continu- 
ing many  of  the  normal  functions  of  the  library 
including  fundraising  and  collection  development. 
However,  with  the  collection  unavailable  to  provide 
reference  services,  the  staff  has  given  some  of  their 
time  to  help  other  libraries  on  the  UW  campus. 

Brian  Thompson  has  been  working  on  the 
reference  desk  at  the  Natural  Sciences  Library,  and 
creating  a Horticulture  section  in  the  UW  Libraries 
information  gateway.  Martha  Ferguson  and  Tracy 
Mehlin  have  both  been  working  (continued  on  page  10) 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001  sO  Q|SJV  H fl  D W O ^ 3 S AA  3 N 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001  3 NEWS  FROM  CUH  AND  WPA 


LEFT:  Librarian  Val  Easton  assesses  damage  to  Merrill  Hall. 


Continued  from  page  9 

at  the  general  information  desk  for  the  Allen/ 
Suzzallo  Libraries.  Martha  has  also  been  doing  all- 
subject cataloging  and  Tracy  has  been  working  with 
the  slide  collection  at  the  School  ol  Art,  giving  her 
a solid  foundation  for  a future  reorganization  of  the 
CUH  slide  collection.  Valerie  Easton  continues  to 
oversee  development  for  the  library  as  well  as  work 
with  other  staff  to  begin  to  rebuild  the  library  and 
its  services.  Staff  are  maintaining  contact  with 
library  volunteers,  loyal  patrons  and  the  many 
friends  who  continue  to  offer  support  during  this 
challenging  period. 

Native  Plant  Enhancement  and  Restora- 
tion at  Washington  Park  Arboretum 

One  of  the  most  distinctive  features  of  the  Arbore- 
tum is  the  arrangement  of  its  plant  collections 
amidst  a matrix  of  Pacific  Northwest  native  vegeta- 
tion. The  native  trees  and  shrubs  play  an  integral 
role  in  providing  a backdrop  to  the  collections  as 
well  as  preserving  the  regional  character  of  the 
garden.  This  arrangement  creates  some  special 
vegetation  management  needs  (detailed  below)  to 
retain  the  desirable  companion  plantings  of  natives 
while  protecting  the  collections  from  undue 
competition. 

Managing  Invasive  Plants  Volunteers  have  provided 
assistance  with  removal  of  English  ivy,  herb  Robert, 
and  other  threatening  invasive  plants.  Staff  are  able 
to  keep  the  ivy  down  in  these  cleared  areas,  but  birds 
often  seed  in  new  stands. 

Filling  Understory  Void  With  diminished  under- 
story species  in  the  Arboretum,  water  run-off  and 
unplanned  trails  are  on  the  increase.  This  past  year, 
organized  efforts  were  put  in  place  to  plant  new 
native  groundcovers  and  understory  plants  such  as 
sword  fern,  salal,  and  huckleberry,  and  to  restore  the 
soil  by  adding  compost  and  woodchips. 


The  Arboretum  Foundation  Native  Plant  Study 
Group  (NPSG)  WPA  has  joined  forces  with  NPSG 
to  help  restore  the  knoll  just  east  of  the  Winter 
Garden.  Volunteers  collected,  installed,  and  cared  for 
native  plants  that  were  obtained  from  a King  County 
salvage  site.  Additional  volunteers  from  Temple  Beth 
Am  and  McGilvra  Elementary  School  helped  with 
weeding,  spreading  compost  and  planting  small 
ferns.  At  its  completion,  this  project  will  serve  as  the 
prototype  for  further  work  in  the  Arboretum. 

Arboretum  Master  Plan  Passes 

The  Master  Plan  for  the  Washington  Park  Arbore- 
tum was  unanimously  passed  by  both  the  Seattle 
City  Council  and  the  University  of  Washington 
Board  of  Regents  in  May.  After  6 years  of  intensive 
public  debate  and  several  versions,  the  newly-passed 
plan  maintains  its  original  emphasis  on  the  plants, 
collections  and  park-like  aspects  of  the  Arboretum. 
The  plan,  envisioned  to  take  20  years  to  complete, 
calls  for  $43  million  in  improvements.  The  collec- 
tions will  gradually  be  renovated  to  be  more  people- 
friendly,  and  improved  trails  will  help  visitors  find 
destinations.  The  north  end  of  Arboretum  Drive 
will  be  re-routed  closer  to  the  Broadmoor  fence, 
thus  tying  together  the  entire  north  end  of  the 
Arboretum.  In  the  south  end,  several  new  eco- 
geographic  gardens  will  be  built.  Eventually  small 
education  and  curation  buildings  will  be  constructed 
in  conjunction  with  the  Graham  Visitors  Center. 
Currently  priority  items  are  being  selected  and  the 
capital  campaign  will  begin  soon. 

Summer  Interns  at  WPA 

UW  student  Liz  Birkholz  worked  in  the  Education 
Department  with  Monica  Ravin  on  projects  for  the 
autumn  Saplings  Program.  Michigan  State  student 
Ryan  Garrison  worked  with  Randall  Hitchin  in  the 
curation  office.  He  conducted  a field  inventory  of 
collection  holdings  in  the  northern  part  of  the 
Arboretum. 

Arboretum  Staff  Grateful  for  Support 

The  Miller  Foundation  granted  the  Arboretum 
$30,000  to  continue  renovating  the  Pinetum. 

The  Rotary  Club  awarded  the  Arboretum 
Foundation  a grant  of  $1000  to  support  the  Saplings 
Program,  an  environmental  program  for  students  in 
grades  K-8.  This  spring  over  2000  students  partici- 
pated in  the  program. 


RTUNITIES 


Thank  you! 


Thanks  to  the  hundreds  of  people  who  called  to  offer  help  after  the  fire!  The  students,  staff  and 


faculty  at  the  Center  appreciate  all  the  help  we  received  during  this  difficult  time.  Even  if  we  have  been  unable  to  take 


you  up  on  your  offer,  it  means  a lot  to  us  that  you  made  it.  We  are  grateful  to  everyone  who  has  been  so  supportive 
during  this  time. 


CUH  Reception  Desk  Volunteers  Urgently 
Needed:  Interact  with  visitors,  faculty,  staff,  and 
students  while  helping  out  with  phone  calls  and 
answering  general  questions.  Your  help  will  be 
greatly  appreciated,  particularly  for  shifts  on  either 
Monday  or  Friday,  either  a half  or  whole  day.  Call 
Ray  Larson  at  206-616-91 13  for  more  information. 

Herbarium  Volunteers  are  needed  to  collect 


plant  specimens  from  Arboretum  plants.  This  takes 
only  a few  hours  every  week  or  two  to  search  for 
plants  in  fruit  or  flower.  Arboretum  maps  and  plant 
lists  will  be  provided.  Contact  Erikka  Pearson  at 
206-683-2589  or  e-mail  her  at  epearson@ 
u.  Washington,  edu. 

In  Search  of  Urban  Plant  Hunters:  The  Otis 
Douglas  Hyde  Herbarium  is  interested  in  docu- 
menting occurrences  of  weeds  in  Washington.  We 
are  looking  for  a few  good  plant  hunters  to  walk 
through  city  parks,  neighborhoods,  and  industrial 
areas  in  search  of  weeds.  Contact  Erikka  Pearson  at 
206-685-2589  or  epearson@u.  Washington. edu. 


groups  at  a ratio  of  one  staff  person  per  1 5 to  20 
volunteers.  Work  parties  can  be  scheduled  through- 
out the  year.  Call  Chris  Pfeiffer  at  206-328-4182  for 
more  information  or  to  sign  up. 

WPA  Information  Desk  Volunteers 
Needed:  Greet  visitors,  share  your  enthusiasm, 
answer  questions,  and  interact  with  staff  and  other 
volunteers  in  the  stimulating  environment  at  the 
Arboretum.  Shift  times  are  either  half  or  whole  days, 
once  a week.  Call  the  Building  Manager  at 
206-543-8800. 

Work  with  Youth  in  Garden  Sites:  Seattle 


Tuesdays  in  the  Garden:  Work  with  the 
Arboretum  staff  every  Tuesday  from  12:30  to  3:30 
p.m.  to  help  provide  essential  garden  care.  Tasks  vary 
with  the  season.  Enjoy  and  help  tend  to  the  wonder- 
ful plants  in  the  Arboretum!  Call  Chris  Pfeiffer  at 
206-328-4182  for  information  and  to  sign  up. 


Youth  Garden  Works  is  currently  in  need  of  caring 
adult  volunteers  to  work  with  youth  in  their  South 
Park  and  University  District  garden  sites.  Call  the 
SYGW  office  at  206-525-1213,  extension  3131. 


1 1 


Volunteer  Groups  needed  at  the 
Arboretum:  Community  service  groups  are  a vital 
source  of  support  in  caring  for  Arboretum  plant 
collections  and  managing  invasive  weed  problems. 
Many  hands  make  light  work.  Arboretum  staff  lead 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001 


CENTER  FOR  URBAN  HORTICULTURE 
AND  WASHINGTON  PARK  ARBORETUM 


AND  PROGRAMS 


12 


Landscape  Design  Basics 


DATES  & TIMES: 


INSTRUCTOR: 

LOCATION: 

FEE: 


Five-Part  Course:  October  2,  4,  9,  11 
at  7 to  9 p.  m.,  and  October  6 at  9 a.  m. 
to  noon 

Keith  Geller,  Landscape  Architect 
Douglas  Classroom,  CUH 
$140;  pre-registration  required,  class 
size  limited 


Learn  the  principles  and  mechanics  of  design,  site 
analysis,  selecting  plants,  and  more.  This  course  is 
intended  for  students  at  all  levels  of  expertise.  It 
includes  homework  assignments  in  addition  to  the 
lectures  and  field  trip. 


Garden  Tour  to  the  Elisabeth  C. 
Miller  Botanical  Garden 


DATE  & TIME: 
GUIDE: 
LOCATION: 
FEE: 


Wednesday  October  3,  1 to  5 p.m. 
Elisabeth  C.  Miller  Garden  staff 
Meet  at  east  parking  lot,  CUH 
$27,  pre-registration  required.  Includes 
transportation 


Join  us  as  we  visit  one  of  Seattle’s  most  stunning 
gardens  for  fall  color.  Betty  Miller  collected  rare  and 
unusual  woody  plants  from  around  the  world  and 
crafted  them  into  a garden  that  combines  many 
unique  specimens  in  a woodland  setting. 


A Street  Tree  Primer 


DATE  & TIME: 
INSTRUCTOR: 

LOCATION: 

FEE: 


Wednesday  October  17,  7 to  9 p.m. 
Nolan  Rundquist,  City  of  Seattle 
Arborist 

NHS  Hall,  CUH 

$25  general  public,  $22  Arboretum 

Foundation  members;  pre-registration 

required 


This  is  your  chance  to  learn  all  about  street  trees 
and  how  to  select,  plant,  and  care  for  them.  In  this 
two-hour  class,  you  will  learn  how  to  select  the  best 
trees  for  your  site,  the  steps  to  take  to  get  a permit 
from  the  City  of  Seattle,  how  to  plant  a tree,  and 
how  to  ensure  long-term  health  of  trees  once  they’re 
planted. 


The  Naming  of  Plants 


DATES  & TIMES: 

INSTRUCTOR: 

LOCATION: 

FEE: 


Two-part  course:  Thursdays  October  18 
and 25,  7 to  9 p.m. 

Marty  Wingate,  Horticulturist  and 

Garden  Writer 

Douglas  Classroom,  CUH 

$30  general  public,  $27  Arboretum 

Foundation  Members;  pre-registration 

required 


This  popular  class  is  back  again.  Learn  the  origins 
of  plant  names,  and  clear  up  the  mysteries  of 
pronouncing  those  names  in  this  class  for  beginners. 
You  will  receive  a take-home  list  of  references  and 
definitions  for  future  use.  This  program  is  useful  for 
those  who  wish  to  participate  in  the  Arboretum 
Plant  Study  Program,  other  plant  identification 
classes,  or  if  you  just  want  to  impress  your  friends 
with  your  plant  knowledge. 


Native  Seed  Collection  and  Storage 

date  & time:  Saturday  October  20,  9 a.m.  to  noon 
instructor:  Barbara  Selemon,  CUH  Plant  Propagator 
location:  Douglas  Classroom,  CUH 

fee:  $30  general  public,  $27  Arboretum 

Foundation  Members;  pre-registration 
required;  class  size  limited 

This  is  a hands-on  class  for  beginners  who  want 
to  learn  how  to  collect,  clean  and  store  seeds  of 
selected  native  species.  The  class  will  focus  on 
herbaceous  plants,  but  will  include  some  woody 
plants  as  well.  Come  prepared  to  walk  around  the 
CUH  grounds  to  collect  seed,  head  back  to  the 
classroom  for  a demonstration  of  seed  cleaning 
methods,  and  go  home  with  new  techniques  for 
your  own  use. 


Renovating  the  Overgrown  Yard 

date  & time:  Tuesday  October  30,  7 to  9 p.m. 
instructor:  Pat  Roome,  Landscape  Designer 
location:  Douglas  Classroom,  CUH 

fee:  $25  general  public,  $22  Arboretum- 

Foundation  Members;  pre-registration 
required 

This  practical  workshop  will  offer  several  ways  to 
increase  the  beauty  and  effectiveness  of  your 
established  landscape  while  decreasing  the  mainte- 
nance it  requires.  Participants  are  invited  to  bring 
three  slides  of  their  property  to  share  with  the  class 
for  general  discussion  of  design  options. 


Gardening  in  Four  Layers 


DATE  & TIME: 
INSTRUCTOR: 

LOCATION: 

FEE: 


Wednesday  November  7,  7 to  9 p.m. 
Carrie  Becker,  Garden  Designer, 
Instructor,  and  Consultant 
Douglas  Classroom,  CUH 
$25  general  public;  $22  Arboretum 
Foundation  Members;  pre-registration 
required 


This  lecture/slide  show  will  discuss  how  the 
complete  garden  is  constructed  in  layers,  from  trees 
down  to  bulbs.  Instructor  Carrie  Becker  will  also 
discuss  the  dimension  of  time  as  a factor  in  good 
garden  design.  You  will  learn  how  to  maximize  plant 
health,  and  come  away  with  some  recommended 
plants  for  each  layer. 


Wild  Plants  of  Greater  Seattle 


DATE  & TIME: 
INSTRUCTOR: 

LOCATION: 

FEE: 


Thursday  November  15,  7 to  8:30 p.m. 
Arthur  Lee  Jacobson,  Author  and 
Tree  Expert 

Douglas  Classroom,  CUH 
$25  general  public;  $22  Arboretum 
Foundation  Members;  pre-registration 
required 


The  author  of  Trees  of  Seattle  has  written  a new 
book,  Wild  Plants  of  Greater  Seattle.  In  this  lecture 
you  will  learn  about  both  the  native  and  naturalized 
flora  of  Seattle  and  nearby  areas.  More  than  1200 
species  grew  or  grow  wild  here,  a wonderful 
kaleidoscope  ranging  from  rare  native  wildflowers  to 
escaped  garden  ornamentals  and  terrible  weeds. 
Don’t  miss  this  chance  to  ask  your  questions  about 
the  wild  plants  around  us! 


Arboretum  Plant  Study 

Enjoy  a walk  through  the  Arboretum  and  learn 
about  the  plants  that  live  there.  Fifteen  plants  will  be 
covered  in  each  class,  with  discussion  and  handouts 
providing  information  on  plant  identification, 
selection,  cultivation,  and  function  in  the  landscape. 

Autumn,  Section  A: 

date  & time:  Saturday  October  27,  9 a.  m.  to  noon 
instructor:  Laura  Zybas,  Rare  Care  Program 
Coordinator 

depart  from:  Graham  Visitors  Center,  WPA 
fee:  $22  general  public;  $20  Arboretum 

Foundation  Members;  pre-registration 
required,  class  size  limited 
Section  A will  cover  rare  and  endangered  plants  being 
grown  in  the  Arboretum. 

Autumn,  Section  B: 

date  & time:  Saturday  November  17,  9 a.m.  to  noon 
instructor:  Randall  Hitchin,  Arboretum  Plant 
Registrar 

depart  from:  Graham  Visitors  Center,  WPA 
fee:  $22  general  public;  $20  Arboretum 

Foundation  Members;  pre-registration 
required,  class  size  limited 


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practical 

gardening 

lectures 


These  lectures  and  demonstrations  for  beginning 
gardeners  are  planned  jointly  with  the  WSU  Coop- 
erative Extension  Community  Horticulture  Program. 
They  are  presented  by  Cooperative  Extension  staff 
and  experienced  WSU  Master  Gardeners. 


Composting  for  Annual  and 
Perennial  Beds 


DATE  & TIME: 
INSTRUCTOR: 

LOCATION: 

FEE: 


Monday  October  15,  7 to  8:30  p.  m. 

Sally  Anne  Sadler,  Urban  Food  Gardeners 
Program  Coordinator 
Douglas  Classroom,  CUH 
$10;  pre-registration  required 


Fall  is  a great  time  to  amend  your  soil  in  order  to 
save  water  and  grow  healthier  plants.  You  can  do  this 
with  homegrown  compost.  Learn  how  to  create 
compost  in  your  backyard  with  a minimum  of  space, 
time,  and  effort. 


Landscaping  with  Native  Plants 

date  & time:  Thursday  November  8,  7 to  8:30 p.m. 
instructor:  Allen  Davenport,  Master  Gardener 
location:  Douglas  Classroom,  CUH 

fee:  $10;  pre-registration  required 

Join  Master  Gardener  Allen  Davenport  as  he 
explains  how  you  can  make  your  yard  a haven  for  all 
species,  not  just  the  human  kind.  He  will  show  slides 
of  native  plants  as  well  as  native  plant  gardens,  and 
discuss  what  native  plants  are  and  why  you  should 
use  them. 


youth  and 

family 

programs 

For  more  information  or  to  schedule  any  of  the 
following  programs,  please  contact  the  Arboretum 
Education  Office,  Monday  through  Friday,  9 a.m.  to 
5 p.m.  at  206-543-880 1 . 

Arboretum  Family  Packs 

Looking  for  some  autumn  fun?  Check  out  one  of 
our  Family  Packs  designed  for  groups  of  5 or  fewer. 
Investigate  the  wonders  of  the  Arboretum  using  the 
self-guided  pack  program,  which  comes  with  easy-to- 
follow  activities,  maps,  field  guides,  games  and  more. 
Family  Packs  are  available  year-round  from  10  a.m. 
to  3 p.m.  at  the  Graham  Visitors  Center  Front  Desk. 
The  two-hour  rental  fee  is  $5.  FREE  to  Arboretum 
Foundation  Members  and  Arboretum  Guides. 

FAMILY  TREE  PACK  Investigate  the  wonders  of  an 
urban  forest.  This  pack  is  full  of  suggested  activities: 
use  magnifiers  and  field  guides  to  look  at  trees 
more  closely,  learn  the  parts  and  functions  of  a tree, 
investigate  exotic  leaves  and  cones  or  learn  about 
pollination  by  doing  it  yourself1. 

WETLAND  WONDERS  Take  a safari  to  Foster  and 
Marsh  Islands  along  the  Waterfront  Trail.  Go  on  a 
wetland  scavenger  hunt,  collect  aquatic  insects  and 
play  games  that  help  to  demonstrate  why  wetlands 
are  important. 


Arboretum  Explorer  Packs 

Great  for  scouts,  camps,  daycare  and  other  youth 
groups.  Lead  your  own  group  on  an  exploration  of 
this  230-acre  living  museum.  Explorer  Packs  are 
filled  with  fun  activities,  games,  maps  and  equip- 
ment for  investigating.  Explorer  Packs  are  available 
year-round  from  10  a.m.  to  3 p.m.  with  a required 
two-week  pre-registration.  A two-hour  rental  fee  is 
$15.  Explorer  Packs  are  designed  for  15  kids 
working  individually  or  for  30  kids  working  in  pairs. 

TREE-TECTIVE  Come  sleuthing  in  the  Arboretum 
and  learn  amazing  facts  about  trees.  This  pack 
includes  hand  lenses,  magnifiers,  field  guides,  games 
and  even  “tree  cookies!” 

MARSH  MADNESS  Investigate  the  amazing  critters 
and  plants  that  make  the  wetland  their  home.  This 
pack  includes  dip  nets,  aquaria,  field  guides, 
scavenger  hunts  and  more. 

!!  NEW!!  AUTUMN  ADVENTURES  This  new 
Explorer  Pack  topic  has  a unique  focus  on  changes 
occurring  over  short  (seasonal)  and  long  (millions  of 
years)  time  periods.  Search  for  living  fossils  at  the 
arboretum.  Learn  how  leaves  change  color  with  a 
chromatography  experiment.  Come  check  out  this 
exciting  new  Explorer  Pack! 

Self-Guided  Learning  Opportunities 

Use  the  Arboretum  as  your  outdoor  classroom.  This 
230  acre,  centrally  located  urban  forest  offers  a 
wealth  of  study  materials  and  experimental  opportu- 
nities. Education  Department  staff  will  assist  you  in 
planning  your  visit  by  offering  information  on 
specific  subject  areas  and  plant  collections  free  of 
charge.  We  request  that  all  self-guided  tours  first 
check  in,  either  by  calling  206-543-8800  or  stopping 
by  the  Graham  Visitors  Center. 


Saplings  School  Program  Tours 

Explore  the  Arboretum  with  trained  guides!  School 
tours  are  Monday  through  Friday,  10  to  1 1:30  am. 
The  cost  is  $2.50  per  child  (chaperones  are  free). 
Two  adult  chaperones  per  15  children  are  required. 
Scholarships  available.  All  of  Sapling’s  curricula  are 
aligned  with  the  state’s  Essential  Academic  Learning 
Requirements.  The  fall  is  a busy  time  at  the 
Arboretum  so  remember  to  book  your  reservations 
at  least  three  weeks  in  advance. 

Grades  K-2:  Discover  Plants 

Younger  students  gain  exposure  to  the  wonderful 
world  of  plants  by  using  characteristics  to  categorize 
living  things.  Students  will  compare  and  contrast 
similarities  between  plants  and  people  as  they  learn 
what  each  needs  to  grow  and  be  healthy. 

Grades  3-6: 

Life  Cycle  of  a Plant  - Fantastic  Fall 

As  seasons  change,  so  do  the  plants  around  us. 

Learn  how  fallen  leaves  cycle  the  nutrients  back  to 
the  trees.  Explore  seed  production  and  dispersal, 
photosynthesis  and  the  reason  for  leaves  changing 
color.  Discover  the  secrets  of  autumn  as  you  learn 
about  the  life  cycle  of  plants  from  flower  to  fruit. 

Grades  3-8:  Native  Plants  & People 

What  is  a native  plant?  Students  will  learn  to 
identify  several  northwest  native  plants.  Discover 
the  historical  importance  of  native  plants  to  the 
Coast  Salish  people.  Students  will  learn  how  native 
plants  were  used  in  daily  life  through  discussion,  by 
using  hands-on  artifacts  and  role-playing  activities. 

Grades  K-8:  Wetland  Ecology  Walk 

Explore  the  complex  world  of  a wetland  ecosystem. 
Learn  firsthand  about  various  habitats  around  the 
Arboretum.  Foster  Island  provides  a unique 
opportunity  for  students  to  study  an  urban  wetland 
up  close  and  discover  the  importance  of  these 
natural  systems. 

Grades  3-8:  Landscape  Design 

A hands-on  class  that  teaches  the  basics  of  designing 
your  own  garden.  Uses  plants  that  are  appropriate 
for  the  season. 


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CENTER  FOR  URBAN  HORTICULTURE  AUTUMN  2001  ^ CLASSES 


< 


arboretum  guided  tours 


Enjoy  the  seasonal  splendor  of  the  Arboretum  with 
its  fabulous  fall  foliage  and  subtle  beauty  of  leaves, 
bark  and  berries.  Clubs,  senior  centers  and  commu- 
nity groups  are  encouraged  to  sign  up  for  these 
guided  60-90  minute  walks.  Topics  include  plants 
of  seasonal  interest,  Foster  Island  ecology,  native 
plants,  and  ethnobotany.  Arboretum  staff  guide 
these  tours  between  10  a.m.  and  3 p.m.,  7 days  a 
week,  year-round.  Fees  are  $15  per  group  of  15  or 
fewer  (minimum  10);  $10  for  Arboretum  Founda- 
tion members.  Call  206-543-8800  to  reserve  a 
guide;  three  weeks  advance  reservation  required. 


Weekend  Walks  at  One 

These  weekend  walks  highlight  areas  of  the  Arbore- 
tum and  collections  with  seasonal  interest.  Walks 
depart  from  Graham  Visitors  Center  every  Saturday 
and  Sunday  at  1 p.m.  Not  available  in  December,  on 
holidays,  or  on  home  football  game  days.  Call  ahead 
to  ensure  a weekend  tour,  206-543-8801. 


Continued  from  page  7 

any  immediate  threats  to  the  population.  This 
information  is  recorded  to  aid  in  the  plant’s 
protection  or  recovery  plan.  Our  volunteers  are 
the  “first  line  of  defense”  for  Washington’s  rare 
plants.  Next  year  we  will  greatly  expand  the 
number  of  sites  and  volunteers.  Applications  for 
volunteers  can  be  found  on  our  website  at  http:// 
depts.  Washington,  edu/rarecare. 

Celebrating  Wildflowers  Event  Canceled 

Another  set-back  from  the  fire  is  that  we  had  to 
cancel  our  Celebrating  Wildflowers  event  that  we 
had  scheduled  at  the  Woodland  Park  Zoo. 
However,  graduate  student  Anya  Levy-Smith  is 
developing  a curriculum  and  activities  for  all  age 
groups  so  that  next  year’s  event  will  be  bigger  and 
better.  Look  for  updates  this  winter. 


Miller  Foundation  Funds  SeedVault 

Two  days  before  the  fire  we  received  fantastic 
news  from  the  Miller  Charitable  Trust.  They  have 
agreed  to  fund  a long-term  seed  storage  facility  in 
the  Douglas  Research  Conservatory.  This  seed 
vault  will  be  fire,  flood,  and  earthquake  proof  to 
protect  the  seeds  of  rare  plants  and  restoration 
plants  throughout  the  Northwest.  This  facility 
will  be  the  largest  of  its  kind  in  the  Pacific 
Northwest  making  us  leaders  in  preserving  plants 
and  germplasm  for  the  future.  Construction 
wall  be  underway  soon  and  we  hope  to  have  the 
facility  up  and  running  by  the  first  of  the  year. 


Ornithological  Society,  7 p.m.,  CUH 
Iris  Society,  7:30  p.m.,  CUH 

Landscape  Design  Basics  (part  I),  7 p.m.,  CUH 

Garden  Tour  of  Miller  Botanical  Garden,  1 p.m., 
meet  at  CUH 

WA  Butterfly  Association,  7 p.m.,  CUH 

Landscape  Design  Basics  (part  2),  7 p.m.,  CUH 

Landscape  Design  Basics  (part  3),  9 a.m.,  CUH 

Orchid  Society,  7 p.m.,  CUH 

Landscape  Design  Basics  (part  4),  7 p.m.,  CUH 
Puget  Sound  Mycological  Society,  7:30  p.m., 
CUH 

Northwest  Horticultural  Society  lecture, 

p.m.,  CUH 


Great  Plant  Picks,  noon,  CUH 
Landscape  Design  Basics  (part  5),  7 p.m.,  CUH 
Rock  Garden  Society,  7:30  p.m.,  CUH 


NOVEMBER 


5 


Northwest  Perennial  Alliance  Lecture,  1 p.m., 
CUH 

Puget  Sound  Bonsai  Assoc.,  7:30  p.m.,  CUH 

Association  for  Women  in  Landscaping, 

6:30  p.m.,  CUH 

The  Naming  of  Plants,  7 p.m.,  CUH 

Arboretum  Plant  Study,  Fall  Section  A,  9 a.m., 
WPA 

Renovating  the  Overgrown  Yard,  7 p.m.,  CUH 


.7 


Ornithological  Society,  7 p.m.,  CUH 
Iris  Society,  7:30  p.m.,  CUH 

Gardening  in  Four  Layers,  7 p.m.,  CUH 
WA  Butterfly  Association,  7 p.m.,  CUH 

Habitat  Gardening  with  Native  Plants,  7 p.m., 
CUH 

Rock  Garden  Society,  7:30  p.m.,  CUH 
Orchid  Society,  7 p.m.,  CUH 

Puget  Sound  Mycological  Society  Lecture, 

7:30  p.m.,  CUH 

Northwest  Horticultural  Society  Lecture, 

7 p.m.,  CUH 

Wild  Plants  of  Greater  Seattle,  7 p.m.,  CUH 
Audubon  Society,  7 p.m.,  CUH 


DECEMBER 


Holiday  Decorating  from  the  Garden  and 
Garage,  9 a.m.,  CUH 

Ornithological  Society,  7 p.m.,  CUH 
WA  Butterfly  Association,  7 p.m.,  CUH 


Arboretum  Plant  Study,  Fall  Section  B,  9 a.m., 
WPA 

Northwest  Perennial  Alliance,  1 p.m.,  CUH 
Cascade  Cactus  and  Succulent  Society,  2 p.m., 
CUH 

Seattle  Rose  Society,  7:30  p.m.,  CUH 

Puget  Sound  Bonsai  Association,  7:30  p.m., 
CUH 

Association  for  Women  in  Landscaping, 

6:30  p.m.,  CUH 

Holiday  Decorating  from  the  Garden  and 
Garage,  7 p.m.,  CUH 


NOVEMBER 

M T W 


T 

F 

s 

i 

2 

3 

9 

10 

16 

22 

23 

24 

29 

30 

M 


DECEMBER 

T W T F 


2 


S 

8 


WA  Native  Plant  Society,  7 p.m.,  CUH 


Orchid  Society,  7 p.m.,  CUH 

Puget  Sound  Mycological  Society,  7:30  p.m., 
CUH 

Rock  Garden  Society,  7:30  p.m.,  CUH 


9 

12 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

For  up-to-date  calendar  information,  go  to  www.urbanhort.org 


EVENTS  CALEND 


FOR  CLASSES  AND  PROGRAMS 


To  Register:  Please  complete  and  return  the  Registration  Form,  along  with  your  payment  to  the  Center  for 
Urban  Horticulture. 

Refunds:  Requests  for  refunds  on  events  not  attended  must  be  made  in  advance  in  writing,  by  phone,  fax,  or 
in  person.  Requests  received  fewer  than  7 days  from  the  First  class  meeting  have  a 25%  handling  fee 
deducted.  No  refunds  can  be  made  after  the  first  class  meeting.  If  a program  is  cancelled  for  any  reason,  a 
full  refund  will  be  made  to  all  enrollees.  Refunds  may  take  four  weeks  to  process. 

Returned  Checks:  An  $18  service  fee  will  be  charged  for  returned  checks. 

Special  Needs:  To  request  disability  accommodation,  please  contact  the  Disability  Services  Office  at  least 
ten  days  in  advance  of  an  event:  206-543-6450  (voice);  206-543-6452  (TTY);  or  by  e-mail  at 
dso  @u.  Washington,  edu. 

Class  Locations  and  Parking:  Program  locations  are  listed  with  each  program  description.  The  Graham 
Visitors  Center  at  Washington  Park  Arboretum  is  located  at  2300  Arboretum  Drive  East.  Douglas  Class- 
room, NHS  Hall  and  the  other  meeting  facilities  at  Union  Bay  are  located  at  3501  N.E.  4 1st  Street.  Prepaid 
parking  is  located  adjacent  to  the  buildings. 


Center  for  Urban 
Horticulture 

3501  NE  41st  Street 
Box  354115 

Seattle,  WA  98195-41  15 
206-685-8033  (phone) 
206-685-2692  (fax) 
www.urbanhort.org 

Washington  Park 
Arboretum 

2300  Arboretum  Drive  East 
Box  358010 

Seattle.  WA  98195-8010 
206-543-8800  (phone) 
206-543-8893  (fax) 
http://depts.washington.edu/wpa/ 


LU 

z 

_c 

M.  Gates 

Center 

LO 

Memorial  Dr. 

for  Urban 

\ 

Horticulture 

PROGRAM 

FEE 

AF 

MEMBERS 

# SPACES  TOTAL  FEE 

HORTICULTURE  PROGRAMS  AT  CUH 

Landscape  Design  Basics 

$140 

Miller  Garden  Tour 

$27 

A Street  Tree  Primer 

$25 

$22 

The  Naming  of  Plants 

$30 

$27 

Native  Seed  Collection  & Storage 

$30 

$27 

Renovating  the  Overgrown  Yard 

$25 

$22 

Gardening  in  Four  Layers 

$25 

$22 

Wild  Plants  of  Greater  Seattle 

$25 

$22 

PRACTICAL  GARDENING  LECTURES 

Composting  for  Annual/Perennial  Beds 

$10 

Habitat  Gardening  with  Native  Plants 

$10 

ARBORETUM  PLANT  STUDY 

Section  A:  October  1 5 

$22 

$20 

Section  B:  November  17 

$22 

$20 

SPECIAL  EVENT 

Holiday  Decorating  from  the  Garden  and  Garage 

$70 

TOTAL  FEE  $ 


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PAYMENT 


O Check  (payable  to  University  ofWashington ) 

O Visa 

O MasterCard 

O American  Express 

CREDIT  CARD  NUMBER 

EXPIRATION  DATE 

NAME  ON  CARD 

GENERAL  INFORMATION 

NAME 


ADDRESS 

CITY 

STATE 

ZIP 

DAY  PHONE 

EVENING  PHONE 

FAX 

EMAIL 

Mail  payment  and  registration  to: 

Urban  Horticulture  Courses 
University  ofWashington 
Box  354115 

Seattle,  WA  98195-41  15 

You  may  also  register  in  person  at: 

Union  Bay  campus 
3501  NE  4 1st  Street 
Mon.-Fri.,  8:00  a.m.  to  5:00p.m. 

Registrations  are  filled  in  the  order 
received.  Enrollment  is  limited. 
Classes  fill  rapidly,  so  register  early. 


CENTER 


for  URBAN  HORTICULTURE 


REGISTRATION  FORM 


UNIVERSITY  OF  WASHINGTON 
CENTER  FOR  URBAN  HORTICULTURE 

The  CUH  mission  is  “to  apply  horticulture  to  natural  and 
human-altered  landscapes  to  sustain  natural  resources 
and  the  human  spirit." 

• Continuing  and  Public  Education 


May  was  a month  of  incredible  contrasts. 

The  Seattle  City  Council  and  UW  Board  of  Regents  both  voted  unanimously  to 
approve  the  Arboretum  Master  Plan.  The  Center  hosted  the  College’s  annual 
scholarship  meeting,  surrounded  by  beautiful  gardens  and  perfect  weather. 

My  life  changed  forever  on  May  21  at  6 a.m.  when  my  wife  woke  me  up  saying 
“Tom,  CUH  is  burning!”  She  had  left  out  the  rest,  which  was  “It  is  all  gone.”  As  I 
drove  to  the  Center  I tried  to  convince  myself  that  it  was  minor.  I wondered  if  I had 
left  something  on  that  caused  the  fire.  Nearing  the  Center  what  emerged  through  the 
trees  were  the  telescoping  antenna  of  five  tv  trucks,  33  fire  trucks  and  a mountain  of 
spaghetti-like  fire  hoses.  The  faces  of  staff  said  it  all:  This  was  very  bad!  And  it  was. 
Merrill  Hall  was  damaged  beyond  repair. 

Merrill  Hall  is  the  main  building  for  CUH.  It  housed  the  Miller  Library, 
research  labs,  faculty,  staff,  student  and  cooperative  extension  offices.  In  my  office, 
computers  and  backup  files,  notes,  books,  1000  slides,  hundreds  of  records,  theses 
and  dissertations,  30+  years  of  work,  were  gone. 

But  we  move  forward.  The  Center  is  composed  of  remarkable  people.  Our 
supporting  community  came  together  to  react,  to  reclaim  and  to  renew.  Volunteers 
from  within  and  outside  the  University  have  enabled  us  to  recover  and  have  provided 
precious  support  of  untold  magnitude.  Their  work,  their  faces  and  their  altruism  will 
be  remembered  as  we  rebuild. 

TOM  HINCKLEY,  DIRECTOR,  CENTER  FOR  URBAN  HORTICULTURE 


• Douglas  Research  Conservatory 

• Elisabeth  C.  Miller  Library 

• Otis  Douglas  Hyde  Herbarium 

• Undergraduate  and  Graduate  Education 

• Union  Bay  Gardens  and  Natural  Area 

• Rare  Plant  Care  and  Conservation 

• Washington  Park  Arboretum 

• Sustainable  Community  Landscapes 


CENTER  FOR 

URBAN  HORTICULTURE 

Tom  Hinckley,  Ph.D.,  Director 

350 1 NE  4 1 st  Street 
Box  354115 

Seattle.  WA  98195-41  15 
206-685-8033  (phone) 
206-685-2692  (fax) 
www.urbanhort.org 


WASHINGTON  PARK 

ARBORETUM 

John  Wott,  Ph.D.,  Director 

2300  Arboretum  Drive  East 
Box  358010 

Seattle,  WA  98195-8010 
206-543-8800  (phone) 
206-543-8893  (fax) 
http:lldepts.washington.edu/wpa/ 


URBAN  HORTICULTURE  NEWSLETTER.  VOL.  18.  NO.  4 


CUH/WPA  Continuing  & Public  Education  Staff: 

Sue  Nicol,  Outreach  Coordinator 
Jean  Robins.  Program  Coordinator 
Sandra  Kirchner,  Outreach  Assistant 

Monica  Ravin,  Education  Coordinator  Assistant  ( Youth  & Community  Outreach) 
Shawna  Hartung,  Arboretum  Education  Assistant 

CUH/WPA  Building  & Rentals  Management  Staff: 

Becky  Johnson,  CUH  Facilities  Manager 
Ray  Larson,  CUH  Assistant  Facilities  Manager 


for  URBAN  HORTICULTURE 


College  of  Forest  Resources 
University  of  Washington 
3501  NE  4 1 st  Street 
Box  354115 

Seattle,  WA  98195-4115 


AUTUMN  2001 


NON-PROFIT  ORG. 
U.S.  POSTAGE 
PAID 
SEATTLE,  WA 
PERMIT  NO.  62