Chilean Bird's-foot Trefoil
Acmispon wrangelianus
Care
0–1ft tall
Friendly
Coastal bluffs and sandy areas from Santa Barbara County to San Diego County, below 1000 ft elevation
Care Guide
Planting
Plant Chilean bird's-foot trefoil in a spot where it can sprawl - this is a prostrate annual that grows 2–12 inches tall and spreads outward. Since this is a native California plant found in many habitat types including disturbed areas, it's adaptable to a range of conditions, though the Calscape data doesn't specify exact sun or soil requirements. Plant in spring to give it the growing season ahead.
After Planting
As an annual herb, Chilean bird's-foot trefoil completes its life cycle in one year, so don't expect it to return the following season - plan to replant or let it self-seed if desired. Beyond initial establishment, specific watering and pruning guidance isn't available in the data provided, so observe your plant's growth and adjust based on your local conditions and how it responds.
Visit Calscape for more information about Chilean Bird's-foot Trefoil
Wildlife Supported
Insects
Host plant for caterpillar development; multiple generations Apr-Sep in California
Primary host plant for multiple broods Mar-Oct; caterpillars feed on foliage
Fungal pathogen; impacts plant vigor and foliage availability