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Species library › Blechnum › Blechnum howeanum
Ferns Partly documented

Blechnum howeanum

A ground fern endemic to Lord Howe Island, now usually placed in Parablechnum. It grows in the misty mossy forest on the summits of Mount Gower and Mount Lidgbird, so it wants cool, constantly humid, shaded conditions.

Blechnum howeanum
Photo: John Game, CC BY 2.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Very humid airBand in Plantistry
Light ShadeDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

A terrestrial fern with a creeping or shortly erect rhizome and fronds to about 70 cm, in shaded mountain forest, especially on the summits of Mount Gower and Mount Lidgbird.

Recorded at 400–880 m, median 500 m, on the island's two southern mountains.

Lord Howe Island

🔒 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 2.0 licence, unmodified.