Overview
Clethra arborea is a bushy shrubs in the genus Clethra, part of the Clethraceae family, with deciduous foliage. Clethra arborea grows best in partial shade, and tolerates loam and sand soils and acid pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden and low maintenance.
About
Clethra arborea, commonly known as the lily-of-the-valley-tree, is a flowering plant in the genus Clethra. It is found in Macaronesia where it is native to Madeira, extinct in the Canary Islands, and considered an introduced species in the Azores. In Madeira its natural habitat is laurisilva forest. Grow it in partial shade and loam and sand soil. In UK gardens it is hardy in most of the UK (RHS H5). It works well for cottage and informal garden and low maintenance. It tolerates acid soils, moist but well-drained conditions and south-facing, north-facing, west-facing and east-facing aspects. Plant in well-drained soil in sun or partial shade.
Wikipedia contributors, CC BY-SA 4.0 — Clethra arborea
About the genus
Clethra is a genus of flowering shrubs or small trees erected as a genus by Linnaeus in 1753.
Wikipedia contributors, "Clethra", CC BY-SA 4.0 — Clethra
Growing conditions
Best soil and position for Clethra
- Sunlight
- Partial shade
- Soil type
- Loam, Sand
- Soil pH
- Acid
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, North-facing, West-facing, East-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Clethra arborea size, habit and characteristics
- Plant type
- Shrubs
- Habit
- Bushy
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Low Maintenance
Care notes
Pruning and caring for Clethra arborea
- Propagation
- Seed in spring or autumn, Softwood cuttings in early summer
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Clethra arborea?
Clethra arborea prefers partial shade. It suits sheltered positions.
What soil does Clethra arborea need?
Clethra arborea grows best in loam and sand soil. It prefers acid soil. Aim for soil that stays moist but well-drained.
Is Clethra arborea hardy in the UK?
Clethra arborea has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Clethra arborea?
Seed in spring or autumn, Softwood cuttings in early summer.