Drosera preissii

Drosera preissii is an old name; Wikipedia redirects it to Drosera heterophylla, the swamp rainbow, an erect tuberous sundew from around Perth, Western Australia, with unusual many-petalled white flowers. Grow it as a winter-growing tuberous sundew that sits wet all winter and bakes dry in summer.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Following the D. heterophylla treatment, it grows in shallow winter-wet swamps and wet clay flats near granite outcrops that dry completely in summer.

Lowland; Perth region and north of it, roughly sea level to a few hundred metres.

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