About
A semi-evergreen perennial producing tough, upright stems to 1m tall clothed with linear to lance-shaped leaves. Terminal racemes of small pink flowers with darker pink centres are borne over a long period from late spring into autumn.
About the genus
Diascia can be annuals or semi-evergreen perennials, usually making a mat of neat foliage with racemes of cup or bell-shaped flowers, usually in shades of pink, and each with two short spurs
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH4
Plant details
Plant typeHerbaceous Perennial
HabitBushy
FoliageSemi evergreen
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden, Patio and container plants
Native toS Africa (E Cape)
Care notes
CultivationGrows best in fertile, moist but well-drained soil in full sun This plant was included in the RHS Diascia (twinspur) perennial trial 2024-2025
PruningDeadhead to prolong flowering
PropagationPropagate by seed or by taking softwood cuttings in summer
Pest resistanceSlugs and snails may be a problem
Disease resistanceGenerally disease-free