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Primula hendersonii

Dodecatheon hendersonii

Also called Mosquito bills

Primula hendersonii
Photo: Eric in SF, CC BY-SA 3.0

Henderson's shooting star is a North American woodland wildflower with nodding magenta to white flowers on short stems, from the primrose family. It is summer dormant and must have good drainage and a dry summer rest to thrive.

Family
Primulaceae (Primul family)
Light
Part shade, Bright indirect
Water
Water freely in the wet season, then keep the soil dry while the plant is dormant in summer.
Soil
Free-draining, gritty mix or woodland soil with good drainage.
Temperature
10–24 °C; hardy outdoors in cool temperate climates, protect from prolonged heat.
How easy
Moderate
Safety
Mildly toxic: Leaves and roots are reported to be poisonous when eaten raw.

About

Primula hendersonii is a species of flowering plant in the family Primulaceae, native to western North America, from California north to southern British Columbia and Idaho. Common names include broad-leaved shooting star, Henderson's shooting star, mosquito bills, and sailor caps.

How to grow it

It needs good drainage, and needs a dry summer period. Plants germinated from seed may take 3–5 years to produce flowers. For some plants, with frequent light fertilization and moisture, dormancy may be delayed, and flowering time may be decreased to 1–2 years. Another technique to speed flowering is to place them in a cooler after dormancy, then bring them to a shadehouse in midsummer. It can be propagated by division in winter. It prefers shade when inland.

Where it grows

In California, it occurs in the northwest (except the north coast), the Cascade Range, the Sierra Nevada foothills, the Central Valley, the San Francisco Bay Area, the north Inner South Coast Ranges, and the San Bernardino Mountains. It is generally found in open woodlands, from sea level in British Columbia, up to 1,900 m (6,230 ft) altitude in California.

Uses

The leaves and roots can be eaten when roasted or boiled, but are reported to be poisonous when eaten raw.

Other Dodecatheon plants

Primula latiloba · Primula meadia · Dark Throat Shootingstar

Text excerpted from the Wikipedia article Primula hendersonii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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