Scientific Name:
Quercus garryana
Pronunciation:
KWURK-us gar-ee-AY-nuh
Common Name:
Garry oak
Family Name:
Fagaceae
Plant Type:
Tree - deciduous
Key ID Features:
Branches large, contorted; shoots orange-red, hairy; leaves oblong-obovate, dark green, lobes may be rounded or slightly pointed, sinus deeply cut into blade and narrow (U-shaped), most 10-14cm long x 6-9cm wide when mature; petioles 1.5-2cm long; acorns sparsely produced, sessile, 2.5-3cm long. Winter ID: bark deeply fissured, terminal buds clustered 3-4mm long, densely pubescent; leaf scars mostly crescent-shaped with 5 bundle scars.
Habit:
Irregular, Open, Spreading, Twiggy, Upright
Form:
Round
Texture:
Medium
Mature Height:
22 - 30m
Mature Spread:
10 - 15m
Growth Rate:
Slow
Origin:
B.C. west of Cascades, U.S. - northwest
Hardiness Rating:
Zone 7: (-18 to -12 °C)
Exposure:
Full sun
Soil/Growing Medium:
Rocky or gravelly or dry
Water Use:
Low, Summer dry
Landscape Uses:
Herb, Shade tree, Specimen plant, Spring interest, Wildlife food, Wind break
Additional Info:
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Alternate
Texture/Venation:
Leathery, Pinnate venation
Surfaces:
Lustrous, Tomentose
Colour in Fall:
Green-yellow, Brown
Shapes:
Oblong, Obovate
Apices:
Rounded
Bases:
Cordate, Cuneate
Margins:
Pinnately lobed
Inflorescence Type:
Catkin (ament)
Flower Morphology:
Monoecious plant
Number Of Petals:
0
Ovary Position:
Inferior
Colour (petals):
Not showy, Yellow, Green-yellow
Flower Scent:
None
Flower Time at Peak:
Apr, May
Fruit Type:
Nut
Fruit Colour:
Brown
Fruiting Time:
Sep, Oct
Additional Info:
Showy,
Bark Morphology:
Showy, Deeply fissured
Bark or Stem Colour:
Grey, Tan
Leaf Bud Type:
Conical (long-pointed), Ovoid
Leaf Scar Shape:
Crescent shaped
Organ Modifications:
Ectomycorrhizae
Propagation:
Seed
Maintenance:
Low
Pest Susceptibility:
Anthracnose, Galls, Heart rot, Leaf miner insect, Mold, Root rot, Rust, Scale insects, Stem borer insects, Wilt (Drought tolerant)
