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Redstem Ceanothus

Ceanothus sanguineus

Rhamnaceae · broadleaf · native

You recognize Redbark Ceanothus by its distinctive red to burgundy twigs and profuse white flower clusters, making it prominent in disturbed and dry slope habitats throughout the interior Pacific Northwest. This native deciduous shrub favors open, sunny sites where it colonizes readily.

Redbark Ceanothus reaches 6-12 feet tall in full sun with low to moderate water needs and exceptional drought tolerance (zones 5a-8b). It thrives on poor, well-drained soils and fixes nitrogen, enriching degraded sites. Fast-growing and fire-adapted with strong resprouting ability, it suits restoration plantings. Prune in late winter before growth. Watch for the same ceanothus diseases and insect issues; root rot develops in heavy, wet soils.

Quick Facts

Height
3–10 ft
Growth Rate
Slow
Light
Sun to Part Shade
Soil
Wet Tolerant
Water
High
Hardiness
Zone Zones 7a–8b
Bloom Time
Apr 1-Apr 30
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 Apr 1-Apr 30
Bloom end / petal fall BBCH 69 Apr 15-May 15
Fruit/seed development BBCH 71 Jun 1-Aug 31
Fruit/seed maturity BBCH 85 Sep 1-Nov 30
Leaf drop BBCH 93 Oct 15-Nov 30
Dormancy BBCH 97 Nov 15-Feb 28

Diseases (2)

Pests (3)