Overview
Astelia banksii is a clump forming, bushy evergreen perennial in the genus Astelia, part of the Asteliaceae family, with evergreen foliage. Astelia banksii grows best in full sun and partial shade, and tolerates sandy and well-drained soils and acid and neutral pH. Its UK hardiness is rated H3. Suggested uses include coastal gardens, erosion control and ornamental. It is native to New Zealand North.
About
Astelia banksii is an evergreen silver-green plant from the beaches of New Zealand. Its common names are coastal astelia, or, in Māori, kowharawhara, a name used for streams in Wellington and on Kapiti Island, though generally the southern limit of the plant is Kawhia and Tauranga.
Wikipedia contributors, CC BY-SA 4.0 — Astelia banksii
About the genus
Astelia is a genus of flowering plants in the recently named family Asteliaceae. They are rhizomatous tufted perennials native to various islands in the Pacific, Indian, and South Atlantic Oceans, as well as to Australia and to the southernmost tip of South America. A significant number of the known species are endemic to New Zealand.
Wikipedia contributors, "Astelia", CC BY-SA 4.0 — Astelia
Growing conditions
Best soil and position for Astelia
- Sunlight
- full sun, partial shade
- Soil type
- sandy, well-drained
- Soil pH
- Acid, Neutral
- Soil moisture
- moist
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- coastal
- UK hardiness
- H3
Plant details
Astelia banksii size, habit and characteristics
- Plant type
- evergreen perennial
- Habit
- Clump forming, Bushy
- Foliage
- Evergreen
- Suggested uses
- coastal gardens, erosion control, ornamental
- Native to
- New Zealand North
Care notes
Pruning and caring for Astelia banksii
- Cultivation
- Prefers well-drained sandy soils, tolerates coastal conditions
- Pruning
- Remove dead or damaged leaves as needed
- Propagation
- division, seed
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
How do I grow Astelia banksii?
Prefers well-drained sandy soils, tolerates coastal conditions.
Where is the best place to plant Astelia banksii?
Astelia banksii prefers full sun and partial shade. It suits coastal positions.
What soil does Astelia banksii need?
Astelia banksii grows best in sandy and well-drained soil. It prefers acid and neutral soil. Aim for soil that stays moist.
How do I prune Astelia banksii?
Remove dead or damaged leaves as needed.
Is Astelia banksii hardy in the UK?
Astelia banksii 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 Astelia banksii?
Division, seed.