Drosera graniticola

A rare tuberous sundew from the Western Mallee of Western Australia that grows only around granite outcrops. It is an erect plant 10–20 cm tall that grows through the cool, wet winter, carries white flowers in August and September, and dies back to an underground tuber for the hot, dry summer. Grow it as a winter-growing tuberous Drosera: bright sun, cool damp winters and a dry summer rest.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

It grows near granite outcrops, where shallow sandy or gravelly soils around the rock are soaked by winter run-off and bake dry in summer. The vegetation around the outcrops is open, so the plants are in more or less full sun.

No elevations are recorded. The Western Mallee is a low inland plateau, broadly around 250–400 m.

South-western Western Australia (Mallee bioregion, Western Mallee subregion)

🔒 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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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.