Overview
Ceanothus papillosus is a bushy, spreading branched shrubs in the genus Ceanothus, part of the Rhamnaceae family, with evergreen foliage. Ceanothus papillosus grows best in full sun, and tolerates loam and sand soils and any pH. Its UK hardiness is rated H4. Suggested uses include city and courtyard gardens, coastal, cottage and informal garden, wildlife gardens, wall side borders and flower borders and beds.
About
Ceanothus papillosus, the wartleaf ceanothus, is a species of plant in the genus Ceanothus. It is endemic to California, where it grows in open habitat on the slopes of the coastal mountain ranges, such as woodland and chaparral.
About the genus
Ceanothus is a genus of about 50–60 species of nitrogen-fixing shrubs and small trees in the buckthorn family (Rhamnaceae). Common names for members of this genus are buckbrush, California lilac, soap bush, or just ceanothus. The genus is native to North America, ranging from Canada and the United States south through Mexico to Panama, with the center of diversity in the California floristic province of the western United States and Mexico, where around ~42 species are endemic out of the roughly ~58 species in the genus.
Wikipedia contributors, "Ceanothus", CC BY-SA 4.0 — Ceanothus
Growing conditions
Best soil and position for Ceanothus
- Sunlight
- Full sun
- Soil type
- Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Ceanothus papillosus size, habit and characteristics
- Plant type
- Shrubs
- Habit
- Bushy, Spreading branched
- Foliage
- Evergreen
- Suggested uses
- City and courtyard gardens, Coastal, Cottage and informal garden, Wildlife gardens, Wall side borders, Flower borders and beds
Care notes
Pruning and caring for Ceanothus papillosus
- Propagation
- Semi-hardwood cuttings in mid to late summer
- Pest resistance
- Scale insects
- Disease resistance
- Honey fungus
Frequently asked questions
Where is the best place to plant Ceanothus papillosus?
Ceanothus papillosus prefers full sun. It suits sheltered positions.
What soil does Ceanothus papillosus need?
Ceanothus papillosus grows best in loam and sand soil. It is happy in soil of any pH. Aim for soil that stays well-drained.
Is Ceanothus papillosus hardy in the UK?
Ceanothus papillosus has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Ceanothus papillosus?
Semi-hardwood cuttings in mid to late summer.
More in the Ceanothus genus
- Ceanothus 'Madagascar'California Lilac
- Ceanothus x pallidus 'La Géant'
- Ceanothus 'Eleanor Taylor'Californian lilac 'Eleanor Taylor'