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Button Fern

Pellaea rotundifolia

Button Fern
Photo: Daderot, Public domain

Button fern is a compact, evergreen fern native to New Zealand with round, leathery, dark-green leaflets. It is grown as a houseplant or garden plant and does best in well-drained, acidic soil with less water and humidity than most ferns need.

Family
Pteridaceae (Maidenhair fern family)
Grows as
Fern
Light
Bright indirect
Water
Water when the top of the soil feels dry, and let it dry out somewhat between waterings.
Soil
Well-drained, acidic potting mix.
Temperature
Tolerates cool conditions but not freezing; keep above 0 °C. Typical indoor range about 15–24 °C.
How easy
Easy
Safety
Not toxic to cats or dogs (ASPCA).

About

Pellaea rotundifolia, the button fern, is a species of fern endemic to New Zealand, where it grows in scrub and forests. It is also a popular garden plant (in zones 8 and 9) and house plant, tolerating low temperatures but not freezing.

Pellaea rotundifolia is a compact, evergreen fern that can have more than 30 pairs of round, dark-green, leathery pinnae on fronds up to 18 in (460 mm) in length. The Latin specific epithet rotundifolia means "round-leaved".

How to grow it

It needs acidic and well-drained soil; it does not appreciate the moist, humid conditions that most ferns require so does well with minimal watering.

This plant has gained the Royal Horticultural Society's Award of Garden Merit.

Other Pellaea plants

Sickle Fern · Cliffbrake

Text excerpted from the Wikipedia article Pellaea rotundifolia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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