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Species library › Asplenium › Asplenium cowanii
Ferns Little published: much of this is inferred from related species

Asplenium cowanii

A spleenwort described by A. R. Smith in 1990 from southern Venezuela. The one wild record lies in the Guayana Highlands of Amazonas state at about 1800 m, a cool, very wet tepui cloud-forest climate. Little else is published, so the conditions below come from that site and the genus.

At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Montane cloud forest in the Guayana Highlands, known from very few collections. Growth habit is not recorded here; treat it as a shaded, moisture-loving forest fern.

The measured site is at about 1800 m.

Venezuela

🔒 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.