Species library › Drosera › Drosera filiformis
Carnivorous Well documented

Drosera filiformis

Thread-leaved sundew

A temperate sundew of the Atlantic coastal plain with long, thread-like, glandular leaves that unroll like fern fronds. Atlantic coast plants are hardy and need a real winter dormancy as a tight hibernaculum, while the small, redder Florida panhandle plants are less dependent on cold. Grow it outdoors in full sun, with its pot standing in rainwater.

Drosera filiformis
Photo: NoahElhardt, CC BY-SA 3.0, via Wikimedia Commons
At home, aim for
Day IntermediateTargets 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

Wet, acidic, nutrient-poor sand and peaty sand in open coastal plain habitats: pine barrens bogs, pond and lake shores that are seasonally exposed, wet savannas and seepage slopes. It is a plant of open ground with little competition, kept open by fire and fluctuating water levels.

It grows on the low coastal plain, mostly within about 100 m of sea level. Few records carry an elevation, so this was not measured.

South-western Nova ScotiaCape Cod and south-eastern New EnglandNew Jersey Pine Barrens and Long IslandDelaware, Maryland and the Carolinas coastal plainFlorida panhandle

🔒 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

Grow Drosera filiformis? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

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.