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Ruby spider orchid

Caladenia occidentalis

Ruby spider orchid
Photo: Geoff Derrin, CC BY-SA 4.0

Ruby spider orchid is a small, deciduous terrestrial orchid from south-west Western Australia, grown for its pinkish-red flowers with long thread-like tips. It grows from an underground tuber and dies back after flowering, so it needs a cool, damp dormant period and is best grown in a pot or shade-house by people who know wild orchids.

Family
Orchidaceae (Orchid family)
Grows as
Orchid
Light
Part shade
Water
Keep the soil moist while growing and flowering in winter and spring, then keep it dry while dormant in summer.
Soil
Free-draining, sandy, acidic mix with some organic matter, similar to native sandplain soil.
Temperature
10-20 °C during growth; tolerates cool winters and needs a dry summer rest; protect from frost.
How easy
Hard
Native range
SW. Australia
Climate
subtropical

About

Caladenia occidentalis, commonly known as the ruby spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and one or two pinkish-red flowers with a white, red-striped labellum.

Where it grows

The ruby spider orchid occurs between Bunbury and Arrowsmith in the Geraldton Sandplains, Jarrah Forest, Murchison and Swan Coastal Plain biogeographic regions where it grows in woodland and on the edges of seasonal swamps and lakes.

Other Caladenia plants

Coastal spider orchid · Canberra spider orchid · Caladenia ×aestantha · Summer spider orchid · Fairy orchid · Stegostyla Alpina · Boranup spider orchid · Bundarra spider orchid · Charming spider orchid · Dainty spider orchid · Dainty blue china orchid · Genoa spider orchid

Text excerpted from the Wikipedia article Caladenia occidentalis 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.

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