Hygrophila phlomoides

A soft-stemmed Acanthaceae herb of wet ground across tropical mainland Southeast Asia, from Assam to Malaya and the Philippines. It behaves like other marsh Hygrophila: strong light, wet feet, and a warm monsoon climate with a drier, cooler winter.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

No rest periodGrows in the ground

Where it grows wild

Little is published for this species; like its relatives it grows in seasonally wet places such as stream margins, ditches, rice-field edges and open marshy grassland. The records fall in the lowlands and low hills of northern Laos, Yunnan and peninsular Thailand.

Measured sites lie between about 30 and 900 m; few records carry an elevation.

Yunnan (China)ThailandLaosMyanmarAssamBangladeshCambodiaVietnamPeninsular MalaysiaPhilippines

🔒 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.