Asplenium ascensionis

A small, glossy spleenwort endemic to Ascension Island in the South Atlantic. Its creeping fronds, 8–15 cm long, carry 15–25 irregular pinnae per side. It grows in damp, sheltered rock crevices on Green Mountain and spreads by plantlets at the frond tips. It is Vulnerable in the wild, so grow it as a mild, misty, lithophytic fern.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

No rest periodGrows on rock (lithophyte)

Where it grows wild

Rock crevices and faces in damp, sheltered spots on Green Mountain, including the misty weather side and wet ash slopes among grasses and moss. Old labels describe it as a 'bright green glistening fern' in rock crevices.

It grows at 430–770 m on Green Mountain, in the cloud-influenced upper part of the island.

Ascension

🔒 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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More Asplenium

Asplenium platyneuron Asplenium bradleyi Asplenium pinnatifidum Asplenium resiliens Asplenium rhizophyllum Asplenium montanum Asplenium scolopendrium Asplenium tutwilerae Asplenium ceterach Asplenium monanthes Asplenium nidus Asplenium septentrionale All 1023 →

Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.