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Delphinium andersonii
Anderson's larkspur is a perennial wildflower native to the western US, found in the Great Basin and Sierra Nevada, with dark blue flowers on a slender stem. It is grown mainly as a native garden or rock garden plant and needs well-drained soil and cool, dry summers.
Delphinium andersonii is a species of perennial larkspur known as Anderson's larkspur. This wildflower is native to western North America, where it can be found in the Great Basin and the Sierra Nevada.
D. andersonii is an erect perennial usually reaching about half a meter in height. It has small leaves on long petioles with the leaf blades divided into long fingerlike lobes. The top of the slender stem is occupied by a cylindrical inflorescence of flowers, each flower two to four centimeters wide with a spur measuring nearly two centimeters in length. The flowers usually have sepals of a brilliant dark blue, with the lower two petals the same color and the upper two petals white. Some individuals have sepals and petals of very light purple or blue to almost white. The anthers are often yellow. It was named after Charles Lewis Anderson by Asa Gray.
Doubtful knight's-spur · Consolida armeniaca · Consolida oliveriana · Royal knight's-spur · Baker's delphinium · Subalpine larkspur · Little larkspur · Musk Larkspur · California larkspur · Delphinium calthifolium · Scarlet larkspur · Carolina larkspur
Text excerpted from the Wikipedia article Delphinium andersonii 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.
