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Parablechnum cordatum

Parablechnum cordatum
Photo: Franz Xaver, CC BY-SA 3.0

Parablechnum cordatum, the Chilean hard fern, is a fern from Chile, Argentina and the Juan Fernández Islands that can reach 0.9 to 1.8 m, sometimes forming a trunk-like stem over time. It is grown for its tough, evergreen fronds and needs shade, moist soil and a sheltered spot.

Family
Blechnaceae (Blechn family)
Grows as
Fern
Light
Part shade, Shade
Water
Keep the soil evenly moist, watering more in hot, dry weather, and avoid waterlogging.
Soil
Moist, humus-rich, well-drained soil or a peat-based mix with leaf mould.
Temperature
10–25 °C; tolerates light frost down to about -5 °C once established, but protect young plants below 0 °C.
How easy
Easy

About

Parablechnum cordatum (synonyms Blechnum cordatum, Blechnum chilense), the Chilean hard fern or costilla de vaca (Chilean Spanish for "cow's rib"), is a fern of the family Blechnaceae, native to Chile. It is also found in neighboring areas of Argentina and the Juan Fernández Islands.

It grows to 0.9–1.8 m (2 ft 11 in – 5 ft 11 in), often developing a trunk-like appearance over time. The fertile fronds are more erect, with narrower pinnae, than the infertile ones.

Other Parablechnum plants

Parablechnum

Text excerpted from the Wikipedia article Parablechnum cordatum 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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