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Sandplain white spider orchid

Caladenia speciosa

Sandplain white spider orchid
Photo: Pauline Foster, CC BY 3.0 au

Sandplain white spider orchid is a native terrestrial orchid from south-west Western Australia, grown from an underground tuber with a single hairy leaf and up to three large white flowers. It is a wild species best appreciated in its native woodland rather than widely cultivated, and it needs its dormancy respected.

Family
Orchidaceae (Orchid family)
Grows as
Orchid
Light
Part shade
Water
Water lightly while in leaf during the cool wet season, then keep dry during summer dormancy.
Soil
Free-draining sandy soil or a gritty, sandy mix.
Temperature
10–25 °C; tolerates cool winters, dislikes sustained heat.
How easy
Hard
Native range
SW. Australia
Climate
subtropical

About

Caladenia speciosa, commonly known as the sandplain white spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and up to three relatively large white flowers tinged with pink and with a fringe of long teeth on the sides of the labellum.

Where it grows

The sandplain white spider orchid is found between Mundijong and Boyanup in the Jarrah Forest and Swan Coastal Plain biogeographic regions where it grows in woodland.

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 speciosa 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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