March Color Appears at the Washington Park Arboretum

March 10th, 2013 by Pat Chinn-Sloan

Selected cuttings from the Washington Park Arboretum (from March 4 - 17, 2013)

1)  Camellia japonica  ‘High Hat’

  • One of our earlier-flowering Japanese camellias.
  • This specimen can be found along the west side of Arboretum Drive near the construction zone detour.

2)  Pieris japonica  ‘Valentine’s Day’

  • Showing its large panicles of pink flowers.
  • Can be found on Azalea Way just south of the Lilacs.

3)  Rhododendron floribundum

  • Native to the Szechwan Province of China.
  • Specimen currently resides along the Upper Trail near the Rhododendron seedling area.

4)  Salix irrorata

  • Upright shrub with slender purple shoots and gray catkins borne before the leaves.
  • Can be found in the Witt Winter Garden.

5)  Stachyurus himalaicus

  • Native to western China and Taiwan.
  • Spreading, deciduous shrub with arching shoots and bell-shaped flowers borne in racemes in late winter.
  • Can be found on the west side of Arboretum Drive across from the double lot.
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UW Student Restoration Ecology Program featured in BGjournal

March 8th, 2013 by Heidi Unruh, UWBG Communications Volunteer

BGjournal 10.1The January 2013 edition of BGjournal features an article on the restoration work UW students have accomplished as part of the Restoration Ecology Capstone course sequence. The capstone works with community partners to accomplish restoration projects in and around Seattle. Capstone projects have helped to restore 15 acres of the Union Bay Natural Area, a former landfill.

To learn more, read the full article:

BGjournal 10.1

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Amphibian Monitoring at the Arboretum

March 8th, 2013 by Heidi Unruh, UWBG Communications Volunteer

Oregon spotted frog, Rana pretiosa

The Woodland Park Zoo, in collaboration with several other local organizations, is working with volunteers to survey amphibian egg masses in local ponds and wetlands, including the Arboretum. Volunteers began 2013 monitoring in February. Already they have discovered loads of live Tree Frog eggs and possible Northern Red-legged Frog eggs in the upper pond of the Woodland Garden area! To read more about the program, scroll down to the “Amphibian Monitoring 2013″ story on this page.

 

 

 

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March 2013 Plant Profile: Edgeworthia chrysantha

March 7th, 2013 by Soest Gardener, Riz Reyes

photo 3I always attempt to showcase a different plant , but for the second year in a row, I simply couldn’t resist mentioning a species that people who visit UW Botanic Garden’s  Center for Urban Horticulure at this time will be asking about because it’s looking the best its ever looked for us.

Making a grand return this month is Edgeworthia chrysantha all by itself!

I paired it with its close relative Daphne odora last year, but with the mild winter we’ve had, both of our specimens came through beautifully and it’s just starting to bloom its heads off! And like it’s relative, it is WONDERFULLY FRAGRANT!

They can be finicky to get established. Make you you choose a spot with sun/part shade, and it benefits from a protected location as well as it’s not as hardy as the Daphnes here in the Pacific Northwest. Rich, well drained soil is a must along with regular irrigation during the summer and fall while buds are setting and avoid moving it around as with most daphnes, mature specimens will sulk if transplanted.

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Common Name: Chinese Paper Bush, Yellow Daphne
Location: CUH-Fragrance Garden, Miller Library North beds
Origin: China
Height and spread: 6ft. high and 6-7ft. wide (usually smaller)
Bloom Time: Winter

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Registration Open for 2013 Urban Forest Symposium

March 6th, 2013 by Jessica Farmer, Continuing Education Coordinator

2013 Urban Forest Symposium: Trees & Views
Hosted by PlantAmnesty and the University of Washington Botanic Gardens

What:   5th Annual Urban Forest Symposium
When:  May 13, Monday from 9am to 4:30pm
Where:  University of Washington Botanic Gardens Center for Urban Horticulture
3501 NE 41st St, Seattle, WA 98105
Cost:      $75 per person. Update: As of 5/9/13, lunches are no longer available for pre-order. A limited number of box lunches will be available for $15 on the day of the event.
Contacturbhort@uw.edu or 206-685-8033.
Register: http://depts.washington.edu/uwbg/news/urban-forest/

 

Expanded Program:

The issue of trees vs. views is a contentious one, pitting view seekers against tree lovers on hillsides facing mountains and water, up and down both coasts. This symposium is entirely devoted to an in-depth look at the issue and will be of interest to communities, HOAs, municipalities, arborists, lawyers and prosecutors, planners, developers, tree advocates, & individuals dealing with this complex issue.

Keynote address on The Aesthetics of Views: Kathleen Day, ASLA, LEED, AP BD &C, ISA certified. Kathleen Day has more than twenty years of experience combining the art and science of landscape architecture, arboriculture and horticulture.

Valuing Trees and Views: A series of speakers will describe how they value trees and views. Presenters include a real estate agent, tax assessor, tree appraiser, and forest assessment coordinator working with the I-tree program to assign ecological systems values to trees and greenbelts.

Policy and Views: A brief series of presentations on city view policies and dealing with conflicting interests on public and shared lands.

Trees, Views, and Slope Stability: Elliot Menashe, Natural resource manager & consultant, Greenbelt Consulting, on taking action to avert flooding, erosion, and landslides. Through enlightened view-management choices, drainage control, and vegetation management, you can stop creating tomorrow’s crisis today.

View and the Law – Covenants, Ordinances and Trespass to Trees: Randall S. Stamen, Attorney at Law and ISA Certified Arborist from Riverside, CA, will lead the discussion on evolving view covenants and ordinances. Other invited attorneys, including Barri Bonapart, owner of Bonapart & Associates, will discuss tree law, lessons learned, neighbor laws as they relate to illegal tree cutting for views, as well as case studies of mediation success.

The attorney presentations will be followed by a panel discussion and Q&A session.

 

THANKS TO OUR SPONSORS:

City of Seattle Office of Sustainability and Environment

West Seattle Garden Tour

 

and Our Supporters:        

The Davey Tree Expert Co.                 Thundering Oak Enterprises

Seattle Tree Preservation, Inc.           Windermere Ballard  

SvR Design Company                          Trees for Life

 

ISA Credits Available: 6; other professional credits pending.

 

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Northwest Horticultural Society Spring Plant Sale

February 25th, 2013 by UWBG Communication Staff

Saturday, March 9, 2013 9am – 3pm

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Find elusive spring ephemerals for sale at the NHS Plant Sale

Come get your early blooming plants at the Northwest Horticultural Society Spring Plant Sale. This annual event features dozens of vendors and lectures by gardening experts, including Dan Hinkley.

Dan Hinkley will be speaking twice at the sale. Tickets go on sale at 8:30 for $5. At 10am his topic is Foliage First – Building the foundation of your garden. At 1pm the topic is The moment at Windcliff – Winter gives way to early spring.

Also, at 11:30 there will be a free experts Q&A session with Lorene Edwards Forkner, Richie Steffen & Marty Wingate.

The sale is free, but tickets for the lectures cost $5.00. Proceeds benefit the Miller Library.

3501 NE 41st St, Seattle, WA 98195

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Work parties to restore nature

February 22nd, 2013 by UWBG Communication Staff

The students involved with UW Restoration Ecology Network need the public’s help restoring degraded natural areas in urban sites. Join a work party to rip out invasive weeds, build trails, spread mulch and many more invigorating tasks.

Richmond Beach Saltwater Park

flier

Click for work party details

Yesler Swamp Trail

Proposed dates

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UW Botanic Gardens Spring Break and Summer Camps

February 19th, 2013 by Community Programs Coordinator

It’s that time of year again when we pull out our calendars and begin to think about summer plans. Consider signing your child up to play and learn outside all summer! We are offering seven weeks of outdoor, nature-based summer camps at the Washington Park Arboretum. New themes have been added like Wetland Rangers and Northwest Naturalists, and kept some of our favorites like Woodland Wonders and Art in the Park.

We are also offering a spring break camp in conjunction with the Seattle Public Schools spring break week. What better way to spend a week in April than exploring our 230 acres of natural wonderland in the heart of Seattle? Spring break is supposed to be a *break* so we plan to play games, go on hikes and adventures through the nooks and crannies of the Arboretum, and tackle projects like building a fort, creating Andy Goldsworthy inspired art and exploring the uses of our native plants.

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Interested in working at our summer camp? Apply to be a Summer Garden Guide!

We also have volunteer opportunities for high school students! Check out our Junior Garden Guide position and application.

 

 

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February Color Appears at the Washington Park Arboretum

February 11th, 2013 by Pat Chinn-Sloan

Witt Winter Garden

Selected cuttings from the Witt Winter Garden at the Washington Park Arboretum (February 4 - 21, 2013)

1) Chimonanthus praecox           Wintersweet

  • Wintersweet is in the allspice family of Calycanthaceae.
  • The sulfur-yellow flowers are intensely fragrant and are born on bare stems.
  • This winter garden favorite is native to China.

2) Ganya x issaquahensis            Hybrid Silktassel

  • This natural hybrid, between G. elliptica and G. fremontii, is native to the western U.S.
  • The showy male catkins will soon produce large amounts of yellow pollen.

3) Hamamelis x intennedia ‘Pallida’           Hybrid Witch Hazel

  • This cultivar produces large, pale-yellow flowers on a horizontal growing form.
  • H. x intermedia is a hybrid between H. japonica and H. mollis, both native to Asia.

4) Hamamelis x intermedia ‘Winter Beauty’           Hybrid Witch Hazel

  • This cultivar, though of the same parents as ‘Pallida’, has orange flowers on a taller,
    more rounded form.

5) Salix irrorata           Bluestem Willow

  • The shoots of this upright shrub are purple with a distinct white bloom in the winter.
  • The catkins are grey when they emerge, turning red and then quickly to yellow.
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UBNA hosts creatures of all sizes…urban wildlife never ceases to amaze!

February 10th, 2013 by Rosemary Baker, UBNA RA

 

A surprising UBNA find - a western redback salamander (Plethedon vehiculum)

A surprising UBNA find – a western redback salamander (Plethedon vehiculum)

Amphibians are the canary in the mineshaft, warning-systems for deteriorating ecosystems and yet this species was found in the former-landfill, Union Bay Natural Area, in January 2013.  Nestled beneath woody debris and in hibernation mode, it was accidentally discovered by a volunteer during a work party to remove Himalayan blackberry.  Why isn’t this one “red-backed”, you ask?  That’s because although most commonly having an orangey-red dorsal stripe, this species occasionally presents a yellow one instead.

What a great find!

 

 

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