Overview
Phormium tenax 'Nanum Purpureum' is a clump-forming shrubs in the genus Phormium, part of the Asphodelaceae family, with evergreen, leathery, strap-shaped leaves foliage. Phormium tenax 'Nanum Purpureum' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include borders, gravel gardens and containers.
About
Phormium tenax is an evergreen perennial plant native to New Zealand and Norfolk Island that is an important fibre plant and a popular ornamental plant. The plant grows as a clump of long, straplike leaves, up to two metres long, from which arises a much taller flowering shoot, with dramatic yellow or red flowers.
Growing conditions
Best soil and position for Phormium
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Phormium tenax 'Nanum Purpureum' size, habit and characteristics
- Plant type
- Shrubs
- Habit
- Clump-forming
- Foliage
- Evergreen, leathery, strap-shaped leaves
- Suggested uses
- Borders, gravel gardens, containers
Care notes
Pruning and caring for Phormium tenax 'Nanum Purpureum'
- Propagation
- Division, seed
- Pest resistance
- Resistant to deer and rabbits
- Disease resistance
- Generally disease-resistant
Frequently asked questions
Where is the best place to plant Phormium tenax 'Nanum Purpureum'?
Phormium tenax 'Nanum Purpureum' prefers full sun. It suits sheltered positions.
What soil does Phormium tenax 'Nanum Purpureum' need?
Phormium tenax 'Nanum Purpureum' grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Phormium tenax 'Nanum Purpureum' hardy in the UK?
Phormium tenax 'Nanum Purpureum' has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Phormium tenax 'Nanum Purpureum'?
Division, seed.
More in the Phormium genus
- Phormium colensoimountain flax

- Phormium colensoi 'Emerald Green'

- Phormium tenax 'Williamsii Variegatum'

- Phormium 'Dark Delight'