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Ceanothus arboreus Greene
Feltleaf, Feltleaf ceanothus, Island ceanothus, Island mountain lilac
Synonym(s): Ceanothus arboreus var. glabra
USDA Symbol: cear
USDA Native Status: L48 (N)
A tall, tree-like shrub, 12-28 ft. high and 10 ft. wide. Bark is smooth and gray and broadly oval leaves are large, glossy and dark green. Flowers are light blue and occur in clusters up to 5 in. long. Evergreen large shrub or small tree with short, straight trunk, rounded crown of many stout, spreading branches, and abundant, pale blue flowers.
This distinctive species grows wild only on three California islands. It is planted along the coast as an ornamental and a screen and along roadsides. One of the largest species of its genus, it bears a suitable species name meaning treelike.
Plant CharacteristicsDuration: Perennial Habit: Shrub Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Blue
Bloom Time: Feb , Mar , Apr , May
DistributionUSA: CA Native Distribution:
Santa Cruz, Santa Rosa, Santa Catalina Islands Native Habitat:
Growing ConditionsLight Requirement: Sun
Soil Description: Various well-drained, dry soils.
Conditions Comments: Grows 5-10 ft./year and is a fast filler.
PropagationDescription: Most Ceanothus spp. come well from seed. Cuttings of this species may also be successful.
Seed Collection: Because dry capsules disperse their seed abruptly with a sudden ejection, it may be necessary to tie cloth bags around the clusters of capsules to catch the seeds.
Seed Treatment: A hot water treatment may be beneficial. (Bring water to a boil and then steep the seeds for 10-15 minutes.)
Commercially Avail: yes
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Santa Barbara Botanic Garden
- Santa Barbara, CA
Record Last Modified: 2007-01-01
Research By: TWC Staff