Delphinium

Delphinium is a genus of flowering plants in the buttercup family (Ranunculaceae), commonly known as larkspur.

Delphinium is a genus of flowering plants in the buttercup family (Ranunculaceae), commonly known as larkspur. It includes annual, biennial, and perennial species, and is widely grown for tall flower spikes in gardens and floral arrangements. Many delphiniums are toxic if ingested by people or animals.

Taxonomy and description

Delphinium is a genus in the buttercup family, Ranunculaceae. The plants are known for tall flowering spikes and deeply lobed leaves, and the genus is native mainly to the Northern Hemisphere.

Cultivation

Delphiniums prefer fertile, moist but well-drained soil and are commonly grown in full sun or partial shade depending on climate. They are often treated as short-lived perennials, and some gardeners grow them as annuals in warmer regions.

Flowering and colour

Delphiniums usually bloom in late spring or early summer, with some varieties blooming into late summer or autumn. Flower colours include blue, purple, white, pink, red, yellow, and two-coloured forms.

Toxicity

All parts of delphinium plants contain toxic compounds and can be harmful if eaten. The plants are considered poisonous to humans, pets, cattle, and other livestock.