Species library โ€บ Drosera โ€บ Drosera petiolaris
Carnivorous Partly documented

Drosera petiolaris

The type species of the petiolaris complex, the tropical sundews of the Australian monsoon north. It forms compact rosettes of long, narrow petioles ending in small round traps, and has the widest range of its group, from northern Australia to southern New Guinea. It is one of the easier petiolaris sundews in cultivation, but still wants heat, strong light and high humidity.

Drosera petiolaris
Photo: Michal Rubeลก, CC BY 3.0 cz, via Wikimedia Commons
At home, aim for
Day Warm-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

No detailed habitat account was found in the sources checked. Like its relatives, it grows in seasonally waterlogged sandy or peaty ground in open savanna, on swampy flats and along wet margins. These dry out completely in the dry season, when the plants shrink back.

No elevation data were found. Its range is mainly lowland savanna, probably below about 500 m.

Northern TerritoryQueenslandWestern AustraliaNew Guinea

๐Ÿ”’ Growing it like that

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

โœ“ Day and night temperature targets, and the limits it tolerates
โœ“ Humidity band, and how to hold it
โœ“ Light as DLI and PPFD for a grow light
โœ“ Wet and dry seasons, and whether to rest it
โœ“ Substrate and airflow
โœ“ 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. Photo from Wikimedia Commons, used under its CC BY 3.0 cz licence, unmodified.