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Caladenia longicauda subsp. insularis

Island white spider orchid, a terrestrial orchid from south-west Western Australia that grows from an underground tuber and bears up to four yellowish-white flowers in late winter to spring. It is rare and only known from a small area near Esperance, so it is seldom cultivated.

Family
Orchidaceae (Orchid family)
Grows as
Orchid
Light
Full sun, Part shade
Water
Keep the soil lightly moist while leaves are active, then keep it dry during its summer dormancy.
Soil
Free-draining sandy or gritty soil, similar to its native shallow soil over granite.
Temperature
Mild temperate conditions; protect from hard frost.
How easy
Hard

About

Caladenia longicauda subsp. insularis, commonly known as the island white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four yellowish-white flowers with long, mostly spreading lateral sepals and petals. It is a relatively rare, self-pollinating subspecies and often flowers which are in bud, open and finished are seen on a single plant.

Where it grows

The island white spider orchid is only known from a small area east of Esperance in the Esperance Plains biogeographic region where it grows in shallow soil in coastal heath on low granite outcrops.

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 longicauda subsp. insularis 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.

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