Large-flowered Collomia

Collomia grandiflora

annualView on Calscape

Care

Sun

full sun

Size

0–3ft tall

Bloom

Jun-Aug

Container

Friendly

Flowers

Prized

Native Range

Sierra Nevada foothills and mountains from Tuolumne County north to Modoc County, 2000-8000 ft elevation in open forests and meadows.

Care Guide

Planting

Plant your Large-flowered Collomia in full sun - it needs at least 6 hours of direct sunlight daily to thrive and produce those lovely white, yellow, or orange flowers. This annual grows 1–3 feet tall, so give it space to stretch out. Plant in spring for summer blooms (June through August). While the Calscape data doesn't specify soil preferences, this native western plant will tolerate typical Bay Area garden conditions.

After Planting

Water regularly during the first growing season to establish strong roots, especially through the dry Bay Area summers. Since this is an annual, expect it to complete its life cycle and set seed by fall - those sticky seeds will self-sow if you let them. Moderate care means this plant isn't finicky, but don't let it completely dry out during its blooming period. The biggest mistake is planting it in shade; Large-flowered Collomia won't flower well without full sun.

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Wildlife Supported