Plant Data
Sheet
California
black oak, Quercus kelloggii |
|
Range
Climate,
Elevation
Local
occurrence (where, how common)
Habitat
preferences
It prefer well-drained, deep,
sandy, and gravelly soils. (1)
Plant
strategy type/successional stage (stress-tolerator, competitor, weedy/colonizer, seral,
late successional)
Short epicormic branches. The tolerance of black oak to shade varies with age. (2)
Associated
species
Douglas-fir, Tanoak-pacific madrone, and Pacific ponderosa Pine. (2)
May be collected as: (seed, layered, divisions, etc.)
Seed. (1)
Collection
restrictions or guidelines
Acorns mature in two years; collect from late September to
early November (Niemiec et al. 1995) by shaking them
onto canvas sheets or picking them promptly after they fall to prevent mold
from destroying the cotyledon.(1)
Seed
germination (needs dormancy breaking?)
Stratification is required for 30-45 days at 1-5°C in moist
sand and peat for spring sowing. (1)
Seed
life (can be stored, short shelf-life, long shelf-life)
Short.
Should be planted immediately or place under cool, moist storage
conditions of 15-16°C until the planting following spring. (1)
Recommended
seed storage conditions
Plant acorns immediately or place under cool, moist storage
conditions of 15-16°C until planting the following spring. (1)
Propagation
recommendations (plant seeds, vegetative parts, cuttings, etc.)
Collect
acorns, plant acorns. (1)
Soil or medium requirements (inoculum
necessary?)
Mulch fall beds with leaves or straw. (1)
Installation
form (form, potential for successful outcomes, cost)
Seed
or container-plants grown from seeds. (1)
Recommended
planting density
110-325 seeds per kilogram.(1)
Care
requirements after installed (water weekly, water once, never water, etc.)
Cut roots frequently to promote the fibrous root system necessary for successful transplanting. (1)
Normal
rate of growth or spread; lifespan
Age-heights are 20 years, 8 m (26 ft); 40 years, 13 m (43 ft); 60 years, 17 m (56 ft); 100 years, 22 m (72 ft); and 140 years, 25 m (82 ft) (2). Lifespan may up to 500 years. (2)
Sources
cited
(1) Rose,
R., C. Chachulski and D. Haase. 1996.
Propagation of
(2) Burns,
R. and B. Honkala 1990. Silvics of
Data compiled by: Yongjiang Zhang,
May 12th 2003