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Species library › Ludwigia › Ludwigia helminthorrhiza
Other Well documented

Ludwigia helminthorrhiza

A floating primrose-willow from Mexico to Bolivia and Brazil, with round leaves, white flowers and bundles of spongy white floats on its stems. It creeps from the bank onto open water in warm, sunny swamps and suits ponds or open-topped aquariums.

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
No rest periodAquatic

Where it grows wild

Wet, swampy places, growing from the water's edge onto still water, held up by spongy white float roots.

Mostly lowland: −2 to 1559 m, median 70 m.

MexicoBelizeGuatemalaHondurasCosta RicaPanamaColombiaVenezuelaGuyanaSurinameEcuadorPeruBoliviaBrazilParaguay

🔒 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.