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About PLANTS Characteristics
Conservation Plant Characteristics Data Definitions
PLANTS Characteristics species list
Conservation Plant Characteristics
Quercus douglasii Hook. & Arn.
blue oak
QUDO
| Summary |
| Duration |
Perennial |
| Growth Habit |
Tree |
| Native Status |
L48 (N) |
| Federal T/E Status |
|
| National Wetland Indicator |
|
| |
| Morphology/Physiology |
| Active Growth Period |
Spring |
| After Harvest Regrowth Rate |
|
| Bloat |
None |
| C:N Ratio |
High |
| Coppice Potential |
No |
| Fall Conspicuous |
Yes |
| Fire Resistant |
No |
| Flower Color |
Yellow |
| Flower Conspicuous |
No |
| Foliage Color |
Gray-Green |
| Foliage Porosity Summer |
Moderate |
| Foliage Porosity Winter |
Porous |
| Foliage Texture |
Coarse |
| Fruit/Seed Color |
Brown |
| Fruit/Seed Conspicuous |
Yes |
| Growth Form |
Single Stem |
| Growth Rate |
Slow |
| Height at 20 Years, Maximum (feet) |
16 |
| Height, Mature (feet) |
60.00 |
| Known Allelopath |
No |
| Leaf Retention |
No |
| Lifespan |
Long |
| Low Growing Grass |
No |
| Nitrogen Fixation |
|
| Resprout Ability |
Yes |
| Shape and Orientation |
Erect |
| Toxicity |
None |
| |
| Growth Requirements |
| Adapted to Coarse Textured Soils |
Yes |
| Adapted to Fine Textured Soils |
Yes |
| Adapted to Medium Textured Soils |
Yes |
| Anaerobic Tolerance |
None |
| CaCO3 Tolerance |
None |
| Cold Stratification Required |
No |
| Drought Tolerance |
High |
| Fertility Requirement |
Low |
| Fire Tolerance |
Low |
| Frost Free Days, Minimum |
150 |
| Hedge Tolerance |
None |
| Moisture Use |
Low |
| pH, Minimum |
4.50 |
| pH, Maximum |
7.50 |
| Planting Density per Acre, Minimum |
300 |
| Planting Density per Acre, Maximum |
800 |
| Precipitation, Minimum |
20 |
| Precipitation, Maximum |
40 |
| Root Depth, Minimum (inches) |
32 |
| Salinity Tolerance |
None |
| Shade Tolerance |
Intolerant |
| Temperature, Minimum (°F) |
2 |
| |
| Reproduction |
| Bloom Period |
Spring |
| Commercial Availability |
Contracting Only |
| Fruit/Seed Abundance |
Medium |
| Fruit/Seed Period Begin |
Summer |
| Fruit/Seed Period End |
Fall |
| Fruit/Seed Persistence |
No |
| Propagated by Bare Root |
Yes |
| Propagated by Bulb |
No |
| Propagated by Container |
Yes |
| Propagated by Corm |
No |
| Propagated by Cuttings |
No |
| Propagated by Seed |
Yes |
| Propagated by Sod |
No |
| Propagated by Sprigs |
No |
| Propagated by Tubers |
No |
| Seed per Pound |
100 |
| Seed Spread Rate |
Slow |
| Seedling Vigor |
Low |
| Small Grain |
No |
| Vegetative Spread Rate |
Slow |
| |
| Suitability/Use |
| Berry/Nut/Seed Product |
No |
| Christmas Tree Product |
No |
| Fodder Product |
No |
| Fuelwood Product |
High |
| Lumber Product |
No |
| Naval Store Product |
No |
| Nursery Stock Product |
No |
| Palatable Browse Animal |
Low |
| Palatable Graze Animal |
|
| Palatable Human |
No |
| Post Product |
Yes |
| Protein Potential |
|
| Pulpwood Product |
No |
| Veneer Product |
No |
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