Ceanothus arboreus

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Feltleaf ceanothus
Ceanothus arboreus 2.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rhamnaceae
Genus: Ceanothus
Species: C. arboreus
Binomial name
Ceanothus arboreus
Greene [1]
Ceanothus arboreus range map 2.png
Natural range of Ceanothus arboreus

Ceanothus arboreus, with the common names feltleaf ceanothus, island ceanothus, and island mountain lilac, is a species of Ceanothus shrub in California. [2] [3]

Distribution[edit]

The plant is endemic to coastal southern California, primarily on three of the Channel Islands: Santa Cruz Island, Santa Rosa Island, and Santa Catalina Island. [2] [4]

It is found on slopes in coastal sage scrub and chaparral habitats. [2]

Description[edit]

Ceanothus arboreus is a spreading bush growing up to 12–36 feet (3.7–11.0 m) in height. [4] It has glossy dark green leaves which are leathery or felt-like on their undersides. [4]

Its showy bright blue flowers grow in plentiful panicles, or bunches, of tiny five-lobed blossoms. [4] Some varieties and cultivars have light, powder blue blooms, and others bear darker blue flowers. The bloom period is February to April. [2]

The fruits are three-lobed, triangular capsules. [4]

Ceanothus arboreus at the Regional Parks Botanic Garden in the Berkeley Hills, California.

Cultivation[edit]

'Ceanothus arboreus is cultivated as an ornamental plant for use in drought tolerant and wildlife gardens and natural landscaping projects. [5] [6] Butterflies like the flowers and the quail eat the seeds. [5]

Cultivars[edit]

Numerous cultivars have been selected for garden use, including:

  • Ceanothus arboreus 'Cliff Schmidt' — more compact habit and deeper blue flowers. [7]
  • Ceanothus arboreus 'Owlswood Blue'. [8]
  • Ceanothus arboreus 'Powder Blue' — Powder Blue Ceanothus, Compact Feltleaf Ceanothus. [9][10] [11]
  • Ceanothus arboreus 'Skylark'
  • Ceanothus arboreus 'Trewithen Blue' — very dark blue flowered form from the Channel Islands. [12] It has received the Royal Horticultural Society's Award of Garden Merit.[13]

See also[edit]

References[edit]

External links[edit]