July Color Appears at the Washington Park Arboretum (Part II)

July 18th, 2013 by Pat Chinn-Sloan

Selected cuttings from the Washington Park Arboretum (July 15 - 31, 2013)

Selected cuttings from the Washington Park Arboretum   (July 15-31, 2013)

“Quirky Oaks”

1)   Quercus x bushii ‘Seattle Trident’
(Seattle Trident Hybrid Red Oak)

  • Cultivar of a Black Oak and Blackjack Oak hybrid.
  • Developed in Sir Hillier Gardens and Arboretum in England from scion wood collected at Washington Park Arboretum.
  • Located in the Oak Collection, northwest of Azalea Way service road intersection.

2)   Quercus dentata     (Daimyo Oak)

  • Asian native (China, Korea, Japan, Mongolia)
  • Develops an unusually large leaf; occasionally used as a vegetable in native range.
  • Located in the Oak Collection on hillside near Foster Island Road.

3)   Quercus macrocarpa       (Bur Oak)

  • Native to Eastern and Midwestern U.S.
  • Develops a distinct broad canopy as tree matures.
  • Located in the Oak Collection along ridge west of Azalea Way.

4)   Quercus muhlenbergii      (Chinquapin Oak)

  • Broad, native range spanning from New England to northeast Mexico.
  • Large, slow growing tree with chestnut-like foliage.
  • Located in the Oak Collection along ridge west of Azalea Way, north of the Bur Oak.

5)   Quercus pontica      (Armenian Oak)

  • Native to the Caucasus Mountain region of Eastern Europe.
  • Shrubby oak: leaves on new wood remain evergreen, yet older wood becomes deciduous.
  • Located in the Oak Collection near entrance to the Graham Visitor’s Center.
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