California peony

Paeonia californica Nutt.

California peony follows the rhythm of a dry-summer climate. The plant disappears above ground during summer, then sends up new growth from its roots after the first autumn rain. It grows in chaparral openings, rocky grasslands and oak woodland, and can become especially conspicuous after fire. University of California Irvine, Natural History of Orange County: California Peony

Botanical name

Kew accepts Paeonia californica Nutt. as a species, distinct from P. brownii; older treatments sometimes placed it within that species. Kew Plants of the World Online: Paeonia californica

Recognizing the plant

Its leafy stems generally reach 35–75 centimetres. Finely divided leaves end in narrow to spoon-shaped segments, often with pointed tips. Nodding flowers have dark red or purplish petals, sometimes almost black, with pinkish margins. These petals usually project beyond the inner sepals. The dry follicles grow to three or four centimetres and contain large, slightly curved seeds. Flora of North America, volume 8: Paeonia californica University of California Irvine, Natural History of Orange County: California Peony

Bloom window

California and northern Baja California

Flowering is recorded from December through April, occasionally continuing into May, in the North American flora. Flora of North America, volume 8: Paeonia californica

Native range

Its native range extends through coastal California into northern Baja California, Mexico. The North American flora records it from Monterey County south to San Diego County, in coastal scrub and chaparral from sea level to about 1,500 metres. Flora of North America, volume 8: Paeonia californica

Ecological relationships

A study of three southern Californian populations found seventeen bee species and one melyrid beetle species in the scented, nectar-producing flowers. Schlising (1976): Reproductive proficiency in Paeonia californica, American Journal of Botany 63:1095–1103

Botanical sources

Reviewed 2026-10-11. Seasonal development varies with location and growing conditions.