Overview

Dietes robinsoniana is a columnar upright herbaceous perennial in the genus Dietes, part of the Iridaceae family, with evergreen foliage. Dietes robinsoniana grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H3. Suggested uses include city and courtyard gardens, cottage and informal garden, patio and container plants, mediterranean climate plants and gravel garden.

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. In the wild it grows across Norfolk Is. and Australia. Grow it in full sun and partial shade and most soil types. In UK gardens it is half-hardy and may need winter protection in colder areas (RHS H3). It works well for city and courtyard gardens, cottage and informal garden, patio and container plants, mediterranean climate plants and gravel garden. It tolerates soil of any pH, moist but well-drained conditions and south-facing, east-facing and west-facing aspects. Plant in well-drained soil in a suitable position. Water during establishment.

Wikipedia contributors, CC BY-SA 4.0Dietes robinsoniana

Growing conditions

Best soil and position for Dietes

Sunlight
Full sun, Partial shade
Soil type
Chalk, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing, East-facing, West-facing
Exposure
Sheltered
UK hardiness
H3

Plant details

Dietes robinsoniana size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Columnar upright
Foliage
Evergreen
Suggested uses
City and courtyard gardens, Cottage and informal garden, Patio and container plants, Mediterranean climate plants, Gravel garden

Care notes

Pruning and caring for Dietes robinsoniana

Propagation
Propagate by seed at 13-15°C (55-59°F) in autumn or spring. Alternatively, propagate by division of rhizomes after flowering. Plants may be difficult to establish
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Dietes robinsoniana?

Dietes robinsoniana prefers full sun and partial shade. It suits sheltered positions.

What soil does Dietes robinsoniana need?

Dietes robinsoniana is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Dietes robinsoniana hardy in the UK?

Dietes robinsoniana has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.

How do I propagate Dietes robinsoniana?

Propagate by seed at 13-15°C (55-59°F) in autumn or spring. Alternatively, propagate by division of rhizomes after flowering. Plants may be difficult to establish.

More in the Dietes genus

Browse all Dietes