Holly Garden Project Notice and News

August 26th, 2010 by UWBG Horticulturist

Eurasian berms are located at far right - in pink

 

September through October is our window of opportunity before fall rains begin to commence development and improvement work in the Holly collection.  Scope of work during this period will focus primarily on construction  of  the southernmost Eurasian clade berm located at the north end (near Boyer Ave). See photo of Iain Robertson’s conceptual Holly collection plan – Eurasian clade berms are pink. 

  • In-house tree removals  – 4 small undesirable Bigleaf maples and 4 maple stump sprouts
  • Contract tree removals  – 6 cottonwoods and 1 Western red cedar
  • Also, removal of 4 collection hollies in very poor condition in existing Eurasian berms

During this project work, area will be cordoned off to public and if needed, pedestrian detours will be established. 

Project info will be posted at work site and at the Graham Visitors Center. 

Beginning in late October 2010, regional Qwest corp, will begin a new partnership with UW Botanic Gardens and Seattle City Parks and Recreation. Under the guidance and training of UWBG horticulture staff, Qwest  volunteers, known as Pioneers, will ultimately “adopt” the Holly garden for a year in all facets of horticulture care and maintenance. Initial tasks will focus on: 

  • Finishing southernmost Eurasian clade berm construction if weather permits - grubbing, grading, soil work
  • Modification of northernmost Eurasian clade berm – adding more soil to raise profile and improve drainage
  • Plant and care of several new holly collections, mostly Eurasian clade members
  • General maintenance (weeding, mulching and edging) of the entire Holly garden, including native restoration sites

We look forward to our new partnership with Qwest Pioneers and a marked improvement of our Holly garden.A project sign will be installed on-site in the next few weeks by Seattle City Parks and Recreation.

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August Color Arrives at the Washington Park Arboretum (Part II)

August 19th, 2010 by Pat Chinn-Sloan

Selected cuttings from the Washington Park Arboretum for the 2nd half of August

  1. Ostrya carpinifolia (European hop hornbeam)
  2. Hydrangea aspera ssp sargentiana
  3. Picea smithiana (Himalayan spruce)
  4. Sorbus ‘Birgitta’
  5. Corylus colurna (Turkish hazel)

Complete details.

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Garden Loosestrife Spray Scheduled – Wed., August 18, 2010

August 13th, 2010 by UWBG Horticulturist

Garden Loosestrife (GL) control contractor, NW Aquatic Ecosystems, along with UW Botanic Garden IPM staff, will complete initial 2010 treatment on Wednesday, August 18th. The  Waterfront Trail between Foster Island and MOHAI will be closed early am to public temporarily for contractor access to GL growing near the trail. Signs will be posted on barricades at both trailhead entrances and also staffed during spray period to avoid public breaching the barricades. Trail will be reopened once material has dried on foliage. The remainder applications will be accomplished via boat in and around Marsh and other islands and inlets throughout UW Botanic Gardens managed Union Bay shorelines.

Scheduled pm Kayak tours will not be disrupted. Applications within tour boundaries will be completed in am.

There will be a follow-up treatment later in September. Notice will go out as soon as date is set.

For further information, call 206-543-8800

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Tree Removal Notice

August 10th, 2010 by UWBG Horticulturist

WPA TREE REMOVAL NOTIFICATION UPDATE:

PINE REMOVAL SCHEDULED FOR YESTERDAY, 8/19/10,  HAS BEEN POSTPONED UNTIL SEPT. 2nd, THUR., DUE TO EQUIPMENT NEED: BUCKET TRUCK.

UWBG tree crew has scheduled the removal of a large standing dead pine collection for Wed. 8/18 and/or Thur. 8/19. Vitals below:

Pinus sylvestris

UW Accession: X-72

Grid 4S-8E

DBH 11.8

Location: Madison Strip

Notes: Standing dead, in decline for several years, oozing pitch near base, possibly caused by boring insects

Wood will be hauled and stump ground ASAP to minimize attracting pine pests.

Targets include:  Street – Washington Place. Trail – S. entry pedestrian path. Other – Plant collections

Temporary road and trail closures and/or detours will be well marked at the site and removal posted at the Graham Visitors center and UWBG website.  Thank you for your cooperation.

If you have any questions, pls contact me via e-mail or phone number below.

David Zuckerman

Horticulturist

UW Botanic Gardens

VM 206.543.8008

FX   206.616.2971

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August Color Arrives at the Washington Park Arboretum

August 10th, 2010 by Pat Chinn-Sloan
Selected cuttings from the Washington Park Arboretum for August 2010

Selected Cuttings from the Washington Park Arboretum

  1. Calycanthus occidentalis (Californian Allspice)
  2. Catalpa x erubescens
  3. Cladrastis sinensis (Chinese Yellow Wood)
  4. Eucryphia glutinosa
  5. Itea ilicifolia

Complete details.

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August Color Appears at CUH (Part II)

August 5th, 2010 by Pat Chinn-Sloan

Selected floral arrangement #2, courtesy of UWBG volunteers

  1. Echinops ritro – Globe Thistle
  2. Hosta ‘Halcyon’ – Halcyon Hosta
  3. Persicaria amplexicaulis ‘Taurus’ – Mountain Fleece Flower/ Knotweed
  4. Stipa gigantea – Giant Feather Grass
  5. Stachys byzantina (S. lanata) – Lamb’s Ears

Complete details.

**Editor’s Note: A special thank you to our wonderful volunteers who created this work of art.

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August Color Appears at CUH (Part I)

August 5th, 2010 by Pat Chinn-Sloan

Selected floral arrangement #1 from CUH, courtesy of UWBG volunteers

  1. Acanthus spinosus – Bear’s Breeches
  2. Actaea ‘Brunnette’ and ‘Black Negligee’ – Dark-leafed Bugbane
  3. Athryium nipponicum ‘Pictum’ – Japanese Painted Fern
  4. Hydrangea quercifolia – Oak-leaf Hydrangea

Complete details.

**Editor’s Note: A special thank you to our wonderful volunteers who created this work of art.

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August 2010 Plant Profile: Lilium ‘Scheherazade’

August 5th, 2010 by Soest Gardener, Riz Reyes

A most outstanding hybrid lily known worldwide for its hardiness, vigor, and overall dependability in the garden. ‘Scheherazade’ was one of the first interspecific hybrids introduced on the market and began a trend that would revolutionize the world of lily breeding. Bred by L. Freimann using tetraploid (double the number chromosomes a plant typically has) forms of a cultivar called ‘Thunderbolt’ and a tetraploid form of the famous ‘Black Beauty’, you get a most unusual mahogany crimson edged in gold and later fading to cream born in profusion over stalks that have often been referred to as “Lily Trees”.

Lilium hybrid 'Scheherazade'

I counted over 40 buds and blossoms on ONE STEM! These are gently scented and not overpowering in fragrance like the Orientals (‘Stargazer’ and ‘Casablanca’) or trumpet lilies (Easter Lily). These were a donation from the great lily breeder and grower, Judith Freeman from The Lily Garden 2 years ago and now they’ve hit their stride.

Common Name: Scheherazade Orientpet Lily
Location: Soest Garden Bed 8
Family: Liliaceae
Origin: Garden Origin
Height: 5-7ft.
Spread: 1.5-2ft.
Bloom Time: July into August
Bloom Type/Color: Recurved tepals of rich mahogany crimson edged in gold cream.
Water/Soil: Well drained, moderately moist.

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CUH Update August 2010

August 5th, 2010 by Soest Gardener, Riz Reyes

It’s finally beginning to feel like summer; fairly consistent warm temperatures, scrambling to get containers adequately watered, and gravitation towards shade when working outdoors!

The past few weeks have been so busy and incredibly productive as we’ve been fortunate to have an arsenal of interns, work study students, and volunteers help us out in grounds several times a week this summer. While it takes a bit of patience and organization, the added number of bodies out there doing SOMETHING has helped to keep things under control. While skills are still developing, their efforts have made quite a difference and it seems like they’re savoring the experience.

Soest Garden Bed 4

Lots of summer pruning is well under way to keep our trees, shrubs, and vines growing here relatively healthy and happy. By pruning in the summer, we can work on shaping and training certain species, controlling unruly growth such as water sprouts, suckers, and aggressive vines that have over-”climbed”.

Our evaluations of BLOOMS OF BRESSINGHAM perennials are underway here at CUH and we’re beginning to see glimpses of potential bright stars for the garden. After our first round of evaluations of the new plants we’ve received the last two years, many are looking quite promising while others just bit the dust and would caution gardeners about using them. I hope we can develop a website where we can post our findings and we’re also hoping to have a separate evaluation sheet for visitors to the gardens to GIVE US FEEDBACK about the plants! Please stay tuned!

We’ve also just received a generous donation of perennial plants from Skagit Gardens. Each year, they send us new varieties to feature in our gardens so people can see them and look them up when they visit local nurseries. We’ve received some lovely Sedums, a salvia, and some wonderful tickseeds aka Coreopsis like this smashing one called, ‘Cosmic Eye’ bred by a colleague of mine, Darrell Probst.

Coreopsis 'Cosmic Eye'

We’re also quite active on our Facebook Page so to get the latest tidbits about news, events, and quirky happenings, do “like” us, ok!! haha

R

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Volunteer Help Wanted: Events Publicity Assistant

August 5th, 2010 by Tech Librarian, Tracy Mehlin

Help us get the word out about the many fun events and classes offered by UW Botanic Gardens. The primary responsibility  is to submit event details to media and community web calendars.

Bi-weekly commitment, 2-3 hours per day, 2-3 days per month.

Contact: Jean Robins, Continuing Education Coordinator, 685-2590 or jrobins@uw.edu

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