Dietes grandiflora, commonly named fortnight lily, large wild iris, African iris or fairy iris, is a rhizomatous perennial plant of the Iris Family (Iridaceae) with long, rigid, sword-like green leaves. This species is common in horticulture in its native South Africa, where it is often used in public gardens, beautification of commercial premises and along roadsides.

Dietes grandiflora belongs to the Dietes genus within the Iridaceae family. It performs reliably across temperate, subtropical zones in our experience.

Care sheet.