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Potentilla hendersonii

Potentilla hendersonii
Photo: Ken DeCamp, Public domain

Potentilla hendersonii, known as Henderson's horkelia, is a rare perennial herb in the rose family from dry forests on granite soils in the Klamath Mountains of southern Oregon and northern California. It forms a low mat of hairy gray-green foliage and needs excellent drainage and dry conditions.

Family
Rosaceae (Rose family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Water sparingly once established, allowing the soil to dry out between waterings.
Soil
Sharp, gritty, well-drained soil such as granitic or mineral-rich mix.
Temperature
Hardy in cool temperate conditions; protect from prolonged waterlogged cold.
How easy
Hard
Safety
Not toxic to cats or dogs (ASPCA).
Native range
Oregon to California
Climate
temperate

About

Potentilla hendersonii, commonly known as Henderson's horkelia, is a rare species of flowering plant in the rose family. It is known from four populations in southern Oregon, including Mount Ashland, and one population south of the border in Siskiyou County, California. It is a resident of dry forest habitat in the granite soils of the Klamath Mountains.

Other Potentilla plants

Potentilla californica · Potentilla clevelandii · Potentilla daucifolia · Potentilla rydbergii · Potentilla micheneri · Potentilla yadonii · Potentilla muirii · Potentilla paniculata · Potentilla pickeringii · Potentilla rhypara · Potentilla santolinoides · Potentilla webberi

Text excerpted from the Wikipedia article Potentilla 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.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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