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Tall mountain larkspur

Delphinium scaposum

Also called Barestem Larkspur, Bare-Stem Larkspur, Desert larkspur

Tall mountain larkspur
Photo: Andrey Zharkikh from Salt Lake City, USA, CC BY 2.0

Tall mountain larkspur (Delphinium scaposum) is a perennial wildflower in the buttercup family, native to the desert southwest of the United States and Sonora, Mexico, reaching about 60 cm. It thrives in dry, gravelly, well-drained soil and needs full sun.

Family
Ranunculaceae (Buttercup family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly and let the soil dry out between waterings; overwatering causes rot.
Soil
Dry, gravelly or sandy, very well-drained soil.
Temperature
Tolerates hot summers and cold winters typical of its native range; protect from prolonged waterlogged cold.
How easy
Moderate
Safety
Toxic: All parts of larkspur plants contain toxic alkaloids (such as delphinine) that can cause heart and nervous system effects if eaten.
Native range
WC. U.S.A. to Mexico (Sonora)
Climate
temperate

About

Delphinium scaposum, the tall mountain larkspur or bare‑stem larkspur, is a species of flowering plant in the family Ranunculaceae. It is native to the desert southwest of the United States, and to Sonora in northwestern Mexico. A perennial reaching 60 cm (24 in), it prefers dry, gravelly soils, and is "avidly" pollinated by bumblebees and hummingbirds. Its chromosome count is 2n=16.

Other Delphinium plants

Doubtful knight's-spur · Consolida armeniaca · Consolida oliveriana · Royal knight's-spur · Anderson's larkspur · Baker's delphinium · Subalpine larkspur · Little larkspur · Musk Larkspur · California larkspur · Delphinium calthifolium · Scarlet larkspur

Text excerpted from the Wikipedia article Delphinium scaposum 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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