Overview

Blechnum herminieri is a columnar upright ferns in the genus Blechnum, part of the Blechnaceae family, with evergreen foliage. Blechnum herminieri grows best in partial shade, and tolerates loam soils and acid pH. Its UK hardiness is rated H1b. Suggested uses include houseplants, patio and container plants, sub-tropical and conservatory and greenhouse.

About

Blechnum herminieri is a cultivar of the Blechnum genus, which comprises primarily evergreen ferns with upright or spreading rhizomes. This particular cultivar has a columnar upright habit and maintains evergreen foliage. It thrives in partial shade, ideally in north-facing or east-facing, sheltered locations with moist but well-drained, acid loam soil. Suitable for cultivation in moist, humus-rich soil and shade, it is hardy to UK zone H1b and is often grown as a houseplant or in conservatories and greenhouses. Interest in this fern is mainly during spring and summer.

About the genus

Blechnum, known as hard fern, is a genus of ferns in the family Blechnaceae, subfamily Blechnoideae, according to the Pteridophyte Phylogeny Group classification of 2016. Two very different circumscriptions of the genus are used by different authors. In the PPG I system, based on Gasper et al.

Wikipedia contributors, "Blechnum", CC BY-SA 4.0Blechnum

Growing conditions

Best soil and position for Blechnum

Sunlight
Partial shade
Soil type
Loam
Soil pH
Acid
Soil moisture
Moist but well-drained
Aspect
North-facing or East-facing
Exposure
Sheltered
UK hardiness
H1b

Plant details

Blechnum herminieri size, habit and characteristics

Plant type
Ferns, Herbaceous Perennial
Habit
Columnar upright
Foliage
Evergreen
Suggested uses
Houseplants, Patio and container plants, Sub-tropical, Conservatory and greenhouse

Care notes

Pruning and caring for Blechnum herminieri

Propagation
Spores in summer, division
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Blechnum herminieri?

Blechnum herminieri prefers partial shade. It suits sheltered positions.

What soil does Blechnum herminieri need?

Blechnum herminieri grows best in loam soil. It prefers acid soil. Aim for soil that stays moist but well-drained.

Is Blechnum herminieri hardy in the UK?

Blechnum herminieri has an RHS hardiness rating of H1b, meaning it needs subtropical warmth of 10–15°C and must be grown under glass in the UK.

How do I propagate Blechnum herminieri?

Spores in summer, division.