Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Ceanothus megacarpus is a species of flowering shrub in the Rhamnaceae (Buckthorn) family known by the common name Bigpod Ceanothus. This Ceanothus is endemic to California, where its distribution extends from Santa Barbara County to San Diego County and includes most of the Channel Islands. There are two recognized varieties; var. insularis is a rare form found primarily on the Channel Islands. This shrub may exceed 4 meters in height but usually less and is covered in thick oval to nearly rectangular evergreen leaves. The leaves may be either opposite or alternate, sometimes on the same plant. The flower clusters are small and sparse and are filled with small white to pale lavender flowers with dark centers. The fruit is a large, bumpy, spherical red-green capsule about a centimeter wide. The inside of the capsule is divided into 3 valves, each valve holding a seed. The capsule dehisces neatly in two at the central band to release the seeds. This is a showy plant in early spring.

Plant type

Shrub

Size

6 - 15 ft Tall
6 - 15 ft Wide

Form

Upright

Growth rate

Moderate

Dormancy

Evergreen

Fragrance

Pleasant

Calscape icon
Color

White, Lavender

Flowering season

Winter, Spring

Special uses

Bank stabilization, Hedge

Sun

Full Sun

Water

Low, Very Low

Summer irrigation

Never irrigate once established

Ease of care

Moderate

Cold tolerance

Tolerates cold to 20° F

Soil drainage

Medium

Soil description

Tolerates various soils.
Soil PH: 6.0 - 8.0

Maintenance

Can be pruned to a standard tree form

Propagation

For propagating by seed: Hot water treatment.

Site type

Rocky, dry slopes, ridges, canyons and flats as part of southern chaparral

Plant communities

Chaparral

Use with other south coast chaparral shrubs, of which there are many, including Chamise (Adenostema fasciculatum), Manzanita (Arctostaphylos spp. and Xylococcus spp.), Viguiera (Bahiopsis laciniata), Barberry (Berberis aquifolium or nevinii), blue-flowered Ceanothus such as C. tomentosus, Mountain Mahogany (Cercocarpus betuloides or minutiflorus), Summer Holly (Comarostaphylis diversifolia), Tree Poppy (Dendromecon rigida), Bush Sunflower (Encelia californica), Buckwheat (Eriogonum spp.), Flannelbush (Fremontodendron spp.), Chaparral Yucca (Hesperoyucca whipplei), Toyon (Heteromeles arbutifolia), Chaparral Mallow (Malacothamnus fasciculatus), Scrub Oak (Quercus berberidifolia or dumosa), and Sages (Salvia spp.)

Bats
Caterpillars
Butterflies

Butterflies and moths supported

5 confirmed and 76 likely

Confirmed Likely

Drepanulatrix monicaria

Ceanothus Silkmoth

Hyalophora euryalus

Hedgerow Hairstreak

Satyrium saepium