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Conservatory Greenhouse
Size
Ultimate height
8–12 metresTime to ultimate height
10–20 yearsUltimate spread
2.5–4 metresGrowing conditions
Loam
Sand
Moisture
Moist but well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Yellow | Green | ||
| Winter | Green |
Position
- Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Sheltered Hardiness
H1BBotanical details
- Family
- Apocynaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Climbing
- Potentially harmful
- Harmful if eaten, skin and eye irritant. Wear gloves and other protective equipment when handling
- Genus
Allamanda are evergreen shrubs, sometimes scrambling, with simple, often whorled leaves and terminal clusters of large trumpet-shaped flowers
- Name status
Correct
How to grow
Cultivation
Grow outdoors in moist but fertile soil in full sun in frost-free location. Under glass grow in loam-based potting compost in full sun
Propagation
Propagate by seed or greenwood cuttings
Suggested planting locations and garden types
- Patio and container plants
- Sub-tropical
- Wall side borders
Pruning
Pests
May be susceptible to glasshouse red spider mite and glasshouse whitefly
Diseases
Generally disease-free
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.