Coast Wallflower
Erysimum capitatum
Care
part shade
Fast, Medium; Prefers beach sand but tolerates garden soil.
Mar-Aug
Resistant
Friendly
Yes
Prized
Coastal areas from Mendocino County south to San Diego County, typically below 1000 ft elevation in coastal scrub and grassland, extending to Baja California.
Care Guide
Planting
Plant your Coast Wallflower in fall or early spring in a location with partial shade. It prefers fast-draining soil and will thrive in beach sand, though it tolerates regular garden soil as long as drainage is excellent - avoid heavy clay. Space plants to accommodate their eventual height and spread, giving them room to develop their characteristic erect stems from the basal rosette.
After Planting
Water weekly during your plant's first summer to establish it, then reduce frequency as it matures. Coast Wallflower is moderate in difficulty, so the main thing to avoid is overwatering or planting in poorly draining soil, which will kill it faster than anything else. Expect flowers from March through August in your first year, and know that this plant supports local butterflies and moths, so resist the urge to use pesticides.
Endangered & Threatened Species Supported
California Species of Special Concern
Wildlife Supported
Insects
Critical host plant for early season larvae development
Early season host plant for larval development
Early spring pollen forager for larval provisioning
Early season pollen source for queen establishment and colony founding
Spring host plant for Colias species larvae
Early spring specialist, pollen provisions for larvae
Primary host plant for spring brood larvae
Early season nectar source critical for colony establishment
+5 more species