Pilea fontana

Lesser clearweed

Pilea fontana is a North American annual herb of wet ground: marshes, bogs, pond margins and wet meadows, from the eastern and central United States into southern Canada. Unlike tropical Pilea, it germinates in spring, flowers in late summer and dies with frost. At home it needs constantly wet soil, bright light and a seasonal cycle, with seed overwintered cold.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

A terrestrial herb of wet, often open or lightly shaded places: marsh and bog edges, pond shores, swampy meadows.

Lowland; records with elevations are about 100–390 m.

United StatesCanada

🔒 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.