Mt. Diablo helianthella

The rare 1.5′ beauty is a perennial herb limited to the Bay Area, mostly around Mount Diablo.

The long 6 ” leaves surround the long stems of bright cheery yellow sunflowers in the spring.

Grows best in thin well drained soils.

Companion plants include Chamise, Sagebrush, Coyote brush, Needle grasses and Mules ears to name a few.

Lifeform: Perennial

Sun: Full Sun, Part Shade

Water: Dry, Light

Soil: Rocky, Sand

Other: Attracts Bees, Attracts Butterflies, Drought Tolerant

Container	D-16, D-40
Ecological Value	Threatened by urbanization, grazing, and fire suppression. Possibly threatened by road maintenance, recreational activities, and non-native plants.
Historical Uses	No Historical Uses found.
Distribution	It is only found in the San Francisco Bay Area, mostly in and around Mount Diablo State Park.
Elevation	20' – 3652'
Communities
Habitat	Open, grassy places

Helianthella castanea