Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Mountain Mahogany (Cercocarpus betuloides) is a distinctive-looking shrub that provides visual interest in the landscape. It is known for its long, fuzzy seeds that resemble curled feathers and shine in the sun. "Cercocarpus" means fruit with a tail. The evergreen, birch-like leaves have edges that are smooth at the bottom and toothed at the top. Its small yellow flowers attract hummingbirds and butterflies. Mountain Mahogany is named for its dark bark color, but this plant is actually a member of the Rose family.

This shrub has a tall, upright habit and a fast growth rate. It is often used in narrow areas and as a hedge or privacy screen. It responds well to light or heavy pruning, which may be necessary when planted in small spaces. It can also be cut down to the ground for new growth. It's a low-water plant and adapts to a variety of soil types. Mountain Mahogany is notable for its extensive root system and is often used for restoration and bank stabilization.

Plant type

Shrub

Size

8 - 20 ft Tall
10 - 12 ft Wide

Form

Rounded, Upright Columnar

Growth rate

Fast, Moderate

Dormancy

Evergreen

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Color

Cream, White

Flowering season

Winter, Spring

Special uses

Hedge

Sun

Partial Shade, Full Sun

Water

Very Low

Summer irrigation

Max 1x / month once established

Ease of care

Moderate

Cold tolerance

Tolerates cold to 20° F

Soil drainage

Fast, Medium, Slow

Soil description

adaptable. Tolerates serpentine soil..
Soil PH: 5.0 - 8.0

Maintenance

Responds well to pruning/occasional hard pruning. Can be pruned to to fit well into narrow areas.

Propagation

For propagating by seed: No treatment; 1-1.5 mos. stratification may improve germination (Heit 1971; Hildreth and Johnson 1976).

Site type

Slopes, often near runoffs or slightly damper areas, as part of chaparral or woodland with oaks or pines

Plant communities

Chaparral, Northern Oak Woodland

Good with Oak species, Toyon (Heteromeles arbutifolia), Coffeeberry species, Manzanita species, Ceanothus species, sages, and most other chaparral species

Bats
Caterpillars
Butterflies

Butterflies and moths supported

10 confirmed and 21 likely

Confirmed Likely

Acleris foliana

Chionodes occidentella

Elegant Sheepmoth

Hemileuca eglanterina

Ceanothus Silkmoth

Hyalophora euryalus