Overview

Caladenia dilatata is a plant with a clump-forming habit in the genus Caladenia, part of the Orchidaceae family, with deciduous foliage. Caladenia dilatata grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include ornamental.

About

Caladenia dilatata, commonly known as the green-comb spider-orchid and as koolin by Aboriginal people of the Coranderrk area, is species of flowering plant in the family Orchidaceae and is endemic to south-eastern Australia. It has a single leaf and a single yellowish-green flower with reddish stripes and occurs in Victoria South Australia and Tasmania.

About the genus

Caladenia, commonly known as spider orchids, is a genus of 350 species of plants in the orchid family, Orchidaceae. Spider orchids are terrestrial herbs with a single hairy leaf and a hairy stem. The labellum is fringed or toothed in most species and there are small projections called calli on the labellum.

Wikipedia contributors, "Caladenia", CC BY-SA 4.0Caladenia

Growing conditions

Best soil and position for Caladenia

Sunlight
Full sun
Soil type
Loam
Soil pH
Neutral
Soil moisture
Well-drained
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H5

Plant details

Caladenia dilatata size, habit and characteristics

Habit
Clump-forming
Foliage
Deciduous
Suggested uses
Ornamental

Care notes

Pruning and caring for Caladenia dilatata

Propagation
Seed, division
Pest resistance
High
Disease resistance
High

Frequently asked questions

Where is the best place to plant Caladenia dilatata?

Caladenia dilatata prefers full sun. It suits sheltered positions.

What soil does Caladenia dilatata need?

Caladenia dilatata grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.

Is Caladenia dilatata hardy in the UK?

Caladenia dilatata has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Caladenia dilatata?

Seed, division.