SafePlants

Ceanothus maritimus (Maritime Ceanothus)

Ceanothus maritimus, commonly known as Maritime Ceanothus, is a captivating evergreen shrub endemic to California.

Considerations for Pets

• The text mentions that some Ceanothus species have stiff branching, which could pose a minor physical hazard.

Taxonomy and Nomenclature

• Scientific Name: Ceanothus maritimus Hoover
• Common Names: Maritime Ceanothus, Maritime California Lilac, San Luis Obispo Ceanothus, Valley Violet
• Family: Rhamnaceae (Buckthorn Family)
• Rank: Species

Distribution and Habitat

• Native to San Luis Obispo County, California.
• Grows on old ocean beaches and bluffs, and low hills.
• Prefers coastal areas but can also grow inland.

Morphological Characteristics and Growth Habits

• Evergreen shrub that typically grows to 1 meter (3 feet 3 inches) in height, though some selections can form low mounds.
• Some varieties may be mat-forming.
• Flowers from April to May.
• Lightly fragrant flowers which may be blue, white, or pink.

Varieties and Selections

• 'Valley Violet': A water-conserving selection introduced by UC Davis Arboretum.
• 'Point Sierra': A selection from the hills south of Arroyo de la Cruz in San Luis Obispo County.
• 'Frosty Dawn': A slow-growing selection that forms a low mound.
• 'Popcorn': A selection with white flowers.

Ecological Role

• Considered a rare species by the State of California and is on the CNPS list 1B. 2 (rare, threatened or endangered).

Interactions with Other Organisms

• Flowers attract pollinators.

Quirky Facts

• The 'Valley Violet' variety is considered an "Arboretum All-Star" by the UC Davis Arboretum, recognized as one of their 100 top recommended plants.

Further Information

• RHS (Royal Horticultural Society)
• Encyclopedia of Life
• Discover Life