Austroblechnum penna-marina, synonym Blechnum penna-marina, known as Antarctic hard-fern, alpine water fern and pinque (Chilean Spanish), is a species of fern in the family Blechnaceae, with a natural range from the Araucanía Region to the south and from the coast to the tree line of the Magellanic forests in Chile and adjacent areas of Argentina. It is also found in New Zealand, Australia and some Pacific islands. It is evergreen and grows to 20 cm (8 in).
Alpine water-fern typically shows good disease resistance and encounters relatively few insect pests. Its care is considered difficult because it needs a moist environment and frequent watering. Conversely, the roots are susceptible to rot if overwatered or kept in poorly ventilated conditions. It is better suited to people with some growing experience, as most can keep it alive for a time. Still, the plant may struggle to thrive and its leaves can dry out and lose vigor over time.
How to keep Blechnum Penna Marina.
Light
The Alpine water-fern comes from habitats such as forest understories or rocky areas that provide natural shade. Its preferred light condition is Full Shade, though it can tolerate Partial Sun.
Botanical profile.
Other names.
