Overview
Astelia chathamica 'Silver Shadow' is a clump forming perennial in the genus Astelia, part of the Asteliaceae family, with evergreen foliage. Astelia chathamica 'Silver Shadow' grows best in partial shade and full sun, and tolerates well-drained soils and neutral pH. Its UK hardiness is rated H3. Suggested uses include borders, containers and groundcover. It is native to Chatham Islands and New Zealand.
About
Astelia chathamica, commonly known as the Chatham Islands kakaha, Moriori flax, or silver spear, is a species of flowering plant in the recently named family Asteliaceae. It is an evergreen silver-green perennial from the Chatham Islands of New Zealand, growing to about 1.2 m (4 ft) tall.
Wikipedia contributors, CC BY-SA 4.0 — Astelia chathamica
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
- partial shade, full sun
- Soil type
- well-drained
- Soil pH
- Neutral
- Soil moisture
- moist
- Aspect
- South-facing
- Exposure
- sheltered
- UK hardiness
- H3
Plant details
Astelia chathamica 'Silver Shadow' size, habit and characteristics
- Plant type
- perennial
- Habit
- Clump forming
- Foliage
- Evergreen
- Suggested uses
- borders, containers, groundcover
- Native to
- Chatham Islands, New Zealand
Care notes
Pruning and caring for Astelia chathamica 'Silver Shadow'
- Cultivation
- Prefers sheltered position with well-drained soil. Tolerates coastal conditions.
- Pruning
- Remove dead or damaged leaves as needed.
- Propagation
- Division
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
How do I grow Astelia chathamica 'Silver Shadow'?
Prefers sheltered position with well-drained soil. Tolerates coastal conditions.
Where is the best place to plant Astelia chathamica 'Silver Shadow'?
Astelia chathamica 'Silver Shadow' prefers partial shade and full sun. It suits sheltered positions.
What soil does Astelia chathamica 'Silver Shadow' need?
Astelia chathamica 'Silver Shadow' grows best in well-drained soil. It prefers neutral soil. Aim for soil that stays moist.
How do I prune Astelia chathamica 'Silver Shadow'?
Remove dead or damaged leaves as needed.
Is Astelia chathamica 'Silver Shadow' hardy in the UK?
Astelia chathamica 'Silver Shadow' 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 chathamica 'Silver Shadow'?
Division.