Drosera erythrorhiza

Red ink sundew

A tuberous sundew endemic to south-west Western Australia. In winter it forms a flat rosette of broad leaves pressed to the ground, and in autumn it produces clusters of up to 50 white flowers, from April to June. It grows through the cool, wet winter and survives the hot, dry summer as a dormant tuber deep in the sand. It spreads by offset tubers into colonies, and four subspecies are recognised.

Drosera erythrorhiza — Photo: CC BY-SA 3.0, via Wikimedia Commons

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

It grows in grey sand, red-brown sandy loam, laterite and around granite, in jarrah forest, banksia woodland, heath, mallee and coastal plain, usually in open or lightly shaded ground where the soil is damp in winter and bone dry in summer.

Lowland to low hills. Few records carry an elevation; most are from the Swan Coastal Plain, the Darling Range and the south coast near Albany.

South-west Western Australia

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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More Drosera

Drosera capensis Drosera binata Drosera regia Drosera anglica Drosera falconeri Drosera rotundifolia Drosera capillaris Drosera peltata Drosera glanduligera Drosera peruensis Drosera adelae Drosera finlaysoniana All 242 →

Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.