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Species library › Blechnum › Blechnum parrisiae
Ferns Well documented

Blechnum parrisiae

The rasp fern (formerly Doodia australis), a tough, compact terrestrial fern of coastal and lowland eastern Australia and New Zealand whose new fronds flush pinkish red. Easy and forgiving: mild temperatures, bright shade and evenly moist soil.

At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Dappled lightDLI and PPFD in Plantistry
No rest periodGrows in the ground

Where it grows wild

Coastal and lowland forest margins, banks, rock outcrops and scrub; it also colonises disturbed urban ground and can become weedy.

Recorded from sea level to 1150 m, median 84 m: mainly lowland.

New ZealandKermadec IslandsThree Kings IslandsQueenslandNew South WalesVictoriaTasmaniaAustralian Capital Territory

🔒 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

Grow Blechnum parrisiae? Add it to a free garden and its full profile opens. Pro opens all 38,374 profiles in the library, plants and fungi.

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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.