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Athyrium flexile

Athyrium flexile, known as Newman's lady-fern, is a rare upland fern endemic to Scotland, sometimes treated as an ecotype of the Alpine lady fern. It is best grown in cool, moist, low-nutrient conditions similar to its natural mountain screes.

Family
Athyriaceae (Athyri family)
Grows as
Fern
Light
Part shade
Water
Keep the soil consistently moist but never waterlogged.
Soil
Gritty, free-draining, low-nutrient mix with added grit or stone.
Temperature
5–20 °C; very cold-hardy and tolerates hard winters.
How easy
Moderate

About

Athyrium flexile, commonly known as Newman's lady-fern or the flexile lady fern, is a taxon of fern which is endemic to Scotland. It has been regarded as a species, but it is considered to be an ecotype of the Alpine lady fern. This fern is pale to yellow green in colour and has elliptic, double pinnate leaves which are deciduous. This ecotype grows more quickly and matures faster than the Alpine lady fern in substrates which have low levels of nutrients and is outcompeted by the Alpine lady fern in other situations.

It is an upland variety typically found above 750 metres (2,460 ft) on screes made up of siliceous rocks such as quartzite and granite in the Highlands where it is found at only four sites. It is a snow-tolerant species, the snow lie protecting it from frosts.

Other Pseudathyrium plants

Alpine lady-fern

Text excerpted from the Wikipedia article Athyrium flexile 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.

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