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Ione manzanita

Arctostaphylos myrtifolia

Ione manzanita
Photo: Unknown authorUnknown author, Public domain

Ione manzanita is a rare, federally threatened shrub endemic to the Sierra Nevada foothills of California, growing on acidic Ione Formation soils. It is not a common garden plant, and the key to any cultivation is replicating its acidic, well-drained soil and dry summer conditions.

Family
Ericaceae (Heather family)
Grows as
Shrub
Light
Full sun, Part shade
Water
Water sparingly once established, allowing soil to dry between waterings, and avoid summer irrigation in wet climates.
Soil
Acidic, well-drained, gritty or sandy mix; avoid heavy or alkaline soil.
Temperature
Tolerant of mild temperate conditions; protect from hard frost.
How easy
Hard
Native range
California (Amador Co., Calaveras Co.)
Climate
temperate

About

Arctostaphylos myrtifolia is a rare species of manzanita known by the common name Ione manzanita. It is endemic to the Sierra Nevada foothills of California. It grows in the chaparral and woodland plant community on a distinctive acidic soil series, an oxisol of the Eocene-era Ione Formation, in western Amador and northern Calaveras counties. There are only eleven occurrences, of which three have not been recorded since 1976. This is a federally listed threatened species.

Other Arctostaphylos plants

Santa Cruz manzanita · Mt. Diablo manzanita · Baker's manzanita · Cerro Bola manzanita · Hoary manzanita · Santa Catalina Island manzanita · Hairy manzanita · Santa Rosa Island manzanita · Brittleleaf Manzanita · La Cruz manzanita · Vine Hill manzanita · Little Sur manzanita

Text excerpted from the Wikipedia article Arctostaphylos myrtifolia 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.

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