Plant Profile: Aesculus californica

This deciduous shrub, which can occasionally grow into a small tree, features a broad, flat-topped crown and a short trunk. It tends to shed its leaves early, remaining bare for much of the year, which showcases its smooth, silver-gray bark. The young branchlets exhibit a reddish gray-brown hue. Typically, this plant emerges from dormancy in late winter but may enter dormancy again during the hot, dry summer months.

Seasons of Interest:

Leaves: Early fall; Blooms: Spring/Summer (May-June); Fruit/Nuts/Seeds: Summer/Fall; Buds: Winter (sticky); Bark: Winter (attractive gray)

Insects, Diseases, and Other Plant Issues: This plant may face challenges from pests such as bagworms, Japanese beetles, and borers. It is also susceptible to powdery mildew, rust, and anthracnose. In response to extreme heat, wind, or drought, it may drop its leaves. Notably, all parts of the California buckeye are toxic to humans if consumed.

Commonly found in landscapes as a cultivated woody shrub.

Poisonous parts: Seeds and tea made from the leaves and sprouts.

Preferred Site: Thrives in full sun to partial shade and should be planted in a sheltered location north of zone 6. It performs best in medium moisture, well-drained soil.

Form: Flat-topped crown