Species library › Drosera › Drosera ultramafica
Carnivorous Partly documented

Drosera ultramafica

A rosette-forming tropical highland sundew described in 2011, closely related to Drosera spatulata, D. neocaledonica and D. oblanceolata. It grows on ultramafic (iron- and magnesium-rich, nutrient-poor) soils in open, damp upland heath in Borneo, the Philippines, Sulawesi and Sumatra. Grow it like a cool-to-intermediate highland sundew: bright light, constantly moist mineral-poor medium and mild temperatures all year.

Drosera ultramafica
Photo: Dr. Alastair Robinson, CC BY 3.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Full sunDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Exposed, damp places in stunted upland heath on ultramafic rock: wet seepy ground, mossy rock and open banks where competing vegetation is kept short by the poor, metal-rich soil. Herbarium labels describe it 'growing in exposed damp areas' and 'on moss-covered rock at the depauperate heath formation'.

A highland species: dated specimens come from about 1,800 m on Mt Victoria, Palawan, and about 2,500 m in the Gunung Leuser area of Sumatra; the Kinabalu (Marai Parai) sites are also upland. Most records carry no elevation.

Borneo (Sabah)Philippines (Palawan, Mindanao)SulawesiSumatra

🔒 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. Photo from Wikimedia Commons, used under its CC BY 3.0 licence, unmodified.