Overview

Chasmanthe caffra is a perennial in the genus Chasmanthe, part of the Iridaceae family. Chasmanthe caffra grows best in full sun and partial shade, and tolerates well-drained soils. Its UK hardiness is rated H4. Suggested uses include borders, containers and cut flowers. It is native to South Africa.

About

Chasmanthe caffra is a perennial in the iris family native to South Africa that puts on its main display in summer. It prefers full sun or partial shade and needs well-drained soil in a sheltered position. The plant suits borders, containers and cutting gardens. Flowering occurs from June to August.

About the genus

Chasmanthe is a genus of flowering plants in the family Iridaceae, first described in 1932. It is endemic to Cape Province in South Africa. It is widely grown as an ornamental plant and is naturalized in various locations.

Wikipedia contributors, "Chasmanthe", CC BY-SA 4.0 — Chasmanthe

In the garden

Chasmanthe caffra belongs to the Iridaceae and originates from South Africa; in the UK it is grown for its summer flowering habit. Plants will perform best where they receive plenty of light but some protection from exposed winds, reflecting its preference for full sun to partial shade and a sheltered aspect. Site the plant in a free-draining soil and keep moisture at a moderate level rather than waterlogged; this reduces risk of winter damage. It is rated H4, which translates to average hardiness in UK terms, so it will tolerate typical garden winters but benefit from winter shelter in the coldest sites or extra protection when grown in pots. Use Chasmanthe caffra in mixed borders where summer blooms are needed, in large containers positioned against a warm wall, or for cutting straight into a vase. Flowering runs from June to August, so plan planting near paths or patios to make the most of the stems for summer arrangements and to keep the blooms within easy reach for cutting.

Growing conditions

Best soil and position for Chasmanthe

Sunlight

full sun, partial shade

Soil type

well-drained

Soil moisture

moderate

Exposure

sheltered

UK hardiness

H4

Plant details

Chasmanthe caffra size, habit and characteristics

Plant type

perennial

Suggested uses

borders, containers, cut flowers

Native to

South Africa

Care notes

Pruning and caring for Chasmanthe caffra

Cultivation

Plant corms in spring in well-drained soil; water moderately; protect from frost.

Pruning

Remove spent flower spikes to encourage new growth.

Propagation

Corm division

Frequently asked questions