Ceanothus integerrimus (Deerbrush)
Deciduous shrub reaching 3-18 ft. tall with white to blue or lilac fragrant flower clusters, blooming April to September. Occurs on well-drained soils of all textures on mountain slopes and ridges and in scattered patches within the understory of conifer and oak woodlands; up to 8,000 ft. elevation. Able to fix large amounts of nitrogen. Establishes primarily by seed but also by layering, when branches take root after soil contact, and by sprouting after stand-replacing events such as fire, landslide or logging. High quality palatable forage for ungulates, especially important deer summer browse in the ponderosa pine belt. Provides seeds and cover for many birds and mammals. Valuable honey plant for bees and a nectar source for Johnson’s hairstreak butterfly.
DISTRIBUTION / ADAPTATION
INFORMATION & ATTRIBUTES
Family: Rhamnaceae
Duration: Perennial
Growth Habit: Shrub
Native Status: Native
Growth Form: Multiple Stem
Mature Height: 12 ft
Bloom Color: White
Fruit/Seed Color:
Bloom Period: Late Spring
Annual Precipitation: 16 in.
Drought Tolerance: High
Shade Tolerance: Intolerant
Elevation: ft.
Fire Resistance: No
Fire Tolerance:
Nitrogen fixation:
SOIL ADAPTATION
Coarse Texture: Yes
Medium Texture: Yes
Fine Texture: Yes
Salinity Tolerance: None
CaCO3 Tolerance: Medium
pH Range: 7.1-8.5
SEEDING NOTES
Seeds per Pound:
Seeding Rate: PLS lbs/acre
Season: Fall/Winter
Days to Germination:
VARIETIES & LOCAL ACCESSIONS
None