← Plants

Deer Brush

Ceanothus integerrimus

Rhamnaceae · broadleaf · native

You spot Deer Brush as a semi-erect deciduous shrub with soft foliage and abundant, frothy white (occasionally pale blue or pink) flower clusters in late spring throughout open coniferous forests of the Pacific Northwest. Mule deer browse this nitrogen-fixing native heavily for seasonal nutrition.

Deer Brush grows 6-15 feet tall in full sun with low water needs and outstanding drought tolerance once established (zones 7a-8b). Hardy, nitrogen-fixing, and fire-adapted, it suits riparian restoration and dry slopes. Prefers well-drained, adaptable soils; intolerant of shade. Blooms on new wood; prune in late winter or early spring. Monitor for leaf spot and root rot; three documented insect pests include root weevil and whitefly.

Quick Facts

Height
6–15 ft
Growth Rate
Moderate
Light
Full Sun
Soil
Adaptable
Water
Low
Hardiness
Zone Zones 7a–8b
Bloom Time
May 1-May 31
Origin
Pacific Northwest native

Phenological Calendar

Stage Typical Window
Bud break BBCH 07 Feb 15-Mar 15
Leaf emergence BBCH 11 Mar 1-Apr 1
Bloom start BBCH 61 May 1-May 31
Bloom end / petal fall BBCH 69 May 15-Jun 15
Fruit/seed development BBCH 71 Jun 1-Aug 31
Leaf drop BBCH 93 Oct 15-Nov 30
Dormancy BBCH 97 Nov 15-Feb 28

Diseases (2)

Pests (3)