Overview
Alsophila australis subsp. norfolkiensis is a columnar upright ferns in the genus Alsophila, part of the Cyatheaceae family, with evergreen foliage. Alsophila australis subsp. norfolkiensis grows best in partial shade, and tolerates loam and sand soils and acid and neutral pH. Its UK hardiness is rated H3. Suggested uses include architectural, city and courtyard gardens, coastal and flower borders and beds.
About
Alsophila australis subsp. norfolkiensis is a cultivar of the Alsophila genus, which comprises tree ferns native to tropical and subtropical regions. This fern has a columnar upright habit with evergreen foliage, featuring vertical stems topped with large, dark green fronds. It thrives in partial shade and prefers sheltered, south-, east-, or west-facing aspects. Best grown in moist but well-drained loam or sandy soil with an acid to neutral pH, it suits architectural settings, city and courtyard gardens, coastal areas, and flower borders. It is hardy to UK zone H3 and is best planted in humus-rich soil in shade.
Growing conditions
Best soil and position for Alsophila
- Sunlight
- Partial shade
- Soil type
- Loam, Sand
- Soil pH
- Acid, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
Alsophila australis subsp. norfolkiensis size, habit and characteristics
- Plant type
- Ferns
- Habit
- Columnar upright
- Foliage
- Evergreen
- Suggested uses
- Architectural, City and courtyard gardens, Coastal, Flower borders and beds
Care notes
Pruning and caring for Alsophila australis subsp. norfolkiensis
- Propagation
- Sowing spores as soon as ripe
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Alsophila australis subsp. norfolkiensis?
Alsophila australis subsp. norfolkiensis prefers partial shade. It suits sheltered positions.
What soil does Alsophila australis subsp. norfolkiensis need?
Alsophila australis subsp. norfolkiensis grows best in loam and sand soil. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.
Is Alsophila australis subsp. norfolkiensis hardy in the UK?
Alsophila australis subsp. norfolkiensis has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.
How do I propagate Alsophila australis subsp. norfolkiensis?
Sowing spores as soon as ripe.
