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ShrubsConservatory Greenhouse

Senna corymbosa

flowery senna

A bushy evergreen shrub with pinnate leaves composed of lance-shaped leaflets, and corymbs of bright yellow flowers 2cm across borne in the leaf axils in late summer

Synonyms
Cassia corymbosa Lam.

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
10–20 years
Ultimate spread
1.5–2.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Yellow Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

South–facing

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Fabaceae
Native to GB / Ireland
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 peat-free,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

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