About
An upright to spreading perennial to about 20cm with small, fresh green leaves and spires of relatively large, rich purple-pink flowers from summer to early 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
Soil typeChalk, Loam, Sand
Soil pHAlkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, West-facing
ExposureSheltered
UK hardinessH3
Plant details
Plant typeHerbaceous Perennial
HabitBushy
FoliageSemi evergreen
Height0.1-0.5 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
Care notes
CultivationGrow in fertile, moist but well-drained soil in full sun, and water in dry periods. Good for containers. Will need winter protection in colder areas This plant was included in the RHS Diascia (twinspur) perennial trial 2024-2025
PruningDeadhead to prolong flowering, then cut down at the end of the season
PropagationPropagate by taking softwood cuttings in summer
Pest resistanceSlugs and snails may be a problem
Disease resistanceGenerally disease-free