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Maidenhair Fern

Adiantum raddianum

Family: Pteridaceae

Maidenhair Fern (Adiantum raddianum)

Photo via Wikimedia Commons.

Difficulty
Moderate
Light
Bright, indirect
Water
Constantly moist
Humidity
High
Size
20โ€“30 cm
Closed terrarium
Excellent

With its cloud of delicate, lacy fronds on wiry black stems, the Maidenhair Fern is famously fussy as a houseplant โ€” yet becomes almost foolproof inside the stable humidity of a closed terrarium.

Light

Bright, indirect light only. Direct sun instantly crisps the fine fronds.

Water & humidity

Never let it dry out โ€” even a single dry-out can kill fronds. In a terrarium the constant moisture solves this for you.

In the terrarium

A closed terrarium is arguably the best home for Maidenhair Fern: the sealed environment gives it the unwavering humidity it craves and removes the drying drafts that plague it in open rooms.

Tip: If fronds brown, cut them off at the base โ€” fresh ones will unfurl from the centre.

Common problems

  • Crispy, browning fronds = humidity too low or it dried out; the fix is a more humid, closed setup.
  • Pale fronds = too much light.
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Frequently asked questions

Why do Maidenhair Ferns die so easily?

They collapse the moment the air or soil dries out. A closed terrarium's constant humidity makes them far easier to keep alive.

Is Maidenhair Fern good for terrariums?

Yes โ€” it's one of the plants that does dramatically better in a terrarium than as an open houseplant.

Care information is a general guide; conditions vary. Some links on this site are affiliate links that help support Terrarium Creations.