Dietes robinsoniana is a rhizomatous perennial iris from Lord Howe Island, growing up to 1.5 m with sword-like leaves and white, yellow-marked one-day flowers. It is a frost-sensitive plant best grown in mild, frost-free conditions or as a container plant brought indoors in cold climates.
Family
Iridaceae (Iris family)
Grows as
Bulb
Light
Part shade, Bright indirect
Water
Water regularly during growth and let the top of the soil dry slightly between waterings.
Soil
Well-drained, moderately fertile garden soil or a loam-based potting mix.
Temperature
15–28 °C; does not tolerate cold, so protect below 5 °C.
How easy
Easy
Native range
Lord Howe I.
Climate
wet tropical
About
Dietes robinsoniana, the Lord Howe wedding lily, is found naturally only on Lord Howe Island, Australia. It grows on cliff faces, often in exposed locations. It is also Found on forest margins and the tops of Mount Gower and Mount Lidgbird and behind the beaches on Lord Howe Island. It is one of the world's most intriguing and remarkable biogeographic disjunctions, with its nearest phylogenetic relatives occurring in Africa.
This is the largest plant in the genus Dietes. It does not tolerate cold temperatures. It is an uncommon plant, though it may be locally abundant in certain sites. Growing up to 1.5 metres (4 ft 11 in) tall, the leaves are sword-shaped or linear, 4 to 7 cm (1.6 to 2.8 in) wide. Flowering occurs from September to December. The flowers are white with yellow, lasting for one day only.
Text excerpted from the Wikipedia article Dietes robinsoniana 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.