Size
Ultimate height
1.5–2.5 metresTime to ultimate height
10–20 yearsUltimate spread
1.5–2.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
Aspect
South–facing
Exposure
Sheltered Hardiness
H1CBotanical details
- Family
- Fabaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Genus
Senna can be deciduous or evergreen shrubs , trees or perennials with pinnate leaves and terminal or axillary racemes, corymbs or panicles of usually yellow, bowl-shaped, 5-petalled flowers
- Name status
Correct
- Plant range
- C Americas
How to grow
Cultivation
Under glass grow in loam-based compost, in full light with shade from hot sun and moderate humidity. Water freely in summer but keep just moist in winter. During growth apply a balanced liquid fertiliser monthly. Can be grown outdoors in moderately fertile, moist but well-drained soil in full sun in a sheltered frost-free area
Propagation
Propagate by seed, sown at 18-24°C in spring or strike semi-hardwood cuttings in summer with bottom heat
Suggested planting locations and garden types
- City and courtyard gardens
- Patio and container plants
- Mediterranean climate plants
- Architectural
Pruning
Pruning group 1. Plants grown under glass may need restrictive pruning in late winter
Pests
Generally pest-free
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.