About

This reliable perennial to around 25cm in height with small, semi-trailing, oval pale green leaves. Large red flowers appear on wiry stems 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, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, South-facing
ExposureSheltered
UK hardinessH3

Plant details

Plant typeBedding, Herbaceous Perennial
HabitMatforming
FoliageSemi evergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height1 year
Suggested usesCity and courtyard gardens, Cottage and informal garden, Hanging basket, Patio and container plants

Care notes

CultivationGrow in fertile, moist but well-drained soil in full sun or partial shade. Water in dry periods. Provide protection from frosts This plant was included in the RHS Diascia (twinspur) perennial trial 2024-2025
PruningNo pruning required. Cut back old stems to ground level in spring
PropagationPropagate by softwood cuttings in spring, or semi-ripe cuttings in summer
Pest resistanceMay be susceptible to slugs and snails
Disease resistanceGenerally disease-free