About
This 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.
About the 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
Growing conditions
SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing
ExposureSheltered
UK hardinessH1C
Plant details
Plant typeShrubs, Conservatory Greenhouse
HabitBushy
FoliageEvergreen
Height1.5-2.5 metres
Spread1.5-2.5 metres
Time to full height10-20 years
Suggested usesCity and courtyard gardens, Patio and container plants, Mediterranean climate plants, Architectural
Native toC Americas
Care notes
CultivationUnder 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
PruningPruning group 1. Plants grown under glass may need restrictive pruning in late winter
PropagationPropagate by seed, sown at 18-24°C in spring or strike semi-hardwood cuttings in summer with bottom heat
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free