Species library › Nephrolepis › Nephrolepis brownii
Ferns Well documented

Nephrolepis brownii

Asian sword fern

A tough, weedy sword fern (formerly N. multiflora) native from India and Sri Lanka through South-east Asia to southern China, Japan, Australia and the Pacific. It grows up to about 90 cm tall and spreads by runners in forests and open, disturbed ground. It is invasive in Florida and spreading in tropical America, so grow it contained and never plant it out in warm climates.

Nephrolepis brownii
Photo: Forest and Kim Starr, CC BY 3.0 us, via Wikimedia Commons
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
No rest periodGrows in the ground

Where it grows wild

Usually terrestrial, sometimes epiphytic, in forests and in open vegetation such as roadsides, riverbanks and open thickets, and it is often weedy. It forms dense tufts, and its runners often put down stilt-like supports under upright rhizomes.

Low to middle elevations, sea level to about 1700 m, and up to 2000 m in some regions. No wild records were usable for measuring.

India and Sri LankaAndaman IslandsSouthern ChinaJapanSouth-east Asia and MalesiaNorthern AustraliaPacific islands

🔒 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. Photo from Wikimedia Commons, used under its CC BY 3.0 us licence, unmodified.