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Species library › Ludwigia › Ludwigia irwinii
Other Partly documented

Ludwigia irwinii

A primrose-willow of marshes and wet ground in Paraguay, north-eastern Argentina, southern Brazil and Bolivia, mostly in the lowlands. Grow it like other marsh Ludwigia: full sun, wet feet, and warm summers with a mild winter.

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

Specific habitat notes were not found; the records lie in wetlands and wet grassland of the Paraná–Paraguay basin, the usual habitat for Ludwigia.

Recorded 52–1300 m, median 200 m.

ParaguayArgentina NortheastBrazil SouthBrazil SoutheastBolivia

🔒 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.