Leucanthemum

Leucanthemum is a genus of flowering plants in the family Asteraceae, comprising herbaceous perennials and annuals commonly known as daisies. The genus includes numerous species and garden hybrids, among them the oxeye daisy (Leucanthemum vulgare) and the Shasta daisy (Leucanthemum × superbum). The name derives from Greek words meaning “white flower.”

Description and species

Plants typically form upright clumps with simple, often lobed leaves. The inflorescences are solitary heads on long stems, featuring white ray florets arranged around a yellow central disk; sizes and forms vary across species and cultivars. Flowering generally occurs from late spring to late summer in temperate climates. The oxeye daisy is a common wildflower, while Shasta daisies are popular garden cultivars valued for their larger blooms.

Distribution and habitat

Leucanthemum species are native to Europe and western Asia, with several species and hybrids widely cultivated and naturalized in North America and other regions. Oxeye daisy has a long-standing presence in pastures, meadows, and disturbed grounds and is sometimes regarded as a weed in agricultural settings.

Cultivation and uses

They prefer full sun and well-drained soil. They tolerate drought once established but benefit from regular moisture and good air circulation. Garden forms, especially Shasta daisies, are prized as border plants and for cut flowers. Propagation is by seed or division; deadheading can promote continued flowering. Pests and diseases include powdery mildew and leaf spot in humid conditions.

Taxonomy and name

The genus belongs to the tribe Anthemideae within Asteraceae. Leucanthemum means “white flower” in reference to the typical flower color.