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Perennials > Blechnum > Blechnum penna-marina > Blechnum penna-marina subsp. alpinum

Blechnum penna-marina

ssp. alpinum


Alpine Water Fern




Origin:  Native to Australasia and Chile. Genus name from the Greek word for fern, 'blechnon'.
Family
Blechnaceae
Genus
Blechnum
Species
penna-marina
Category
Perennials
Type
Ferns
Subspecies
alpinum
USDA Hardiness Zone
8
Canadian Hardiness Zone
7 - 8a
RHS Hardiness Zone
H4 - H5
Temperature (°C)
-12 - (-7)
Temperature (°F)
10 - 20
Photographs
Description and Growing Information
Flowering Period
General Description
Blechnum penna-marina subsp. alpinum is a fern with creeping rhizomes and ladder-shaped fronds.
Growth
Slow
Leaf Description
Pinnae are rounded, consistently sized along fronds, new growth is bronze-coloured.
Flower Description
Non-flowering but producing spores.
Notable Specimens
RHS Garden Rosemoor, North Devon, England.
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