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Subalpine leek orchid

Prasophyllum sphacelatum

Subalpine leek orchid
Photo: Betty and Don Wood, CC BY 3.0 au

Subalpine leek orchid is a deciduous terrestrial orchid from cold subalpine grassland and herbfield in south-eastern Australia, growing from an underground tuber. It is a wild species rarely grown in gardens, and its key requirement is cool, moist, well-drained conditions with a winter-wet, summer-dry rhythm.

Family
Orchidaceae (Orchid family)
Grows as
Orchid
Light
Full sun, Part shade
Water
Keep the soil moist during the growing season and let it dry out after the leaf dies down in summer.
Soil
Gritty, free-draining soil high in organic matter, such as a terrestrial orchid mix.
Temperature
Tolerates cold winters with frost; avoid sustained heat above about 30 °C.
How easy
Hard
Native range
SE. Australia
Climate
subtropical

About

Prasophyllum sphacelatum, commonly known as subalpine leek orchid, is a species of orchid endemic to south-eastern Australia. It has a single tubular, dull green leaf and up to eighteen scented, green to brownish flowers with a green to pinkish labellum. It grows in subalpine areas of New South Wales, Victoria and Tasmania.

Where it grows

Subalpine leek orchid grows in subalpine herbfield and grassland, sometimes with grasses and shrubs in snow gum (Eucalyptus pauciflora) forest. It is found in sulalpine regions of New South Wales south from the Brindabella Range, in north-eastern Victoria and in Tasmania where it often grows on buttongrass plains.

Other Prasophyllum plants

Genoplesium mucronatum · Prasophyllum abblittiorum · Heathland leek orchid · Prasophyllum albovirens · Prasophyllum album · Mauve leek orchid · Alpine leek orchid · Dainty leek orchid · Pretty Hill leek orchid · Tapered leek orchid · Prasophyllum argillaceum · Prasophyllum asinantum

Text excerpted from the Wikipedia article Prasophyllum sphacelatum 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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