Overview
Diascia 'Rosa' is a matforming bedding in the genus Diascia, part of the Scrophulariaceae family, with semi evergreen foliage. Diascia 'Rosa' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H3. Suggested uses include city and courtyard gardens, cottage and informal garden, patio and container plants and flower borders and beds.
About
Diascia 'Rosa' (twinspur 'Rosa') is a matforming herbaceous perennial from the genus Diascia, known for its dense mats of tidy, semi-evergreen leaves. This cultivar produces racemes of cup- or bell-shaped pink flowers, each with two short spurs, blooming through summer and autumn. It thrives in fertile, moist but well-drained loam soil with a neutral pH, ideally in full sun on a south-facing, sheltered aspect. Suitable for city and courtyard gardens, cottage and informal gardens, patios, containers, and flower borders, it is hardy to UK zone H3 and can be propagated by seed or cuttings.
Growing conditions
Best soil and position for Diascia
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
Diascia 'Rosa' size, habit and characteristics
- Plant type
- Bedding, Herbaceous Perennial
- Habit
- Matforming
- Foliage
- Semi evergreen
- Suggested uses
- City and courtyard gardens, Cottage and informal garden, Patio and container plants, Flower borders and beds
Care notes
Pruning and caring for Diascia 'Rosa'
- Propagation
- Seed, softwood cuttings in spring, semi-ripe cuttings in summer
- Pest resistance
- Slugs and snails may be a problem
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Diascia 'Rosa'?
Diascia 'Rosa' prefers full sun. It suits sheltered positions.
What soil does Diascia 'Rosa' need?
Diascia 'Rosa' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Diascia 'Rosa' hardy in the UK?
Diascia 'Rosa' has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.
How do I propagate Diascia 'Rosa'?
Seed, softwood cuttings in spring, semi-ripe cuttings in summer.
More in the Diascia genus
- Diascia Sun Chimes Red ('Codiared')twinspur [Sun Chimes Red]
![Diascia Sun Chimes Red ('Codiared') — twinspur [Sun Chimes Red]](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Diascia_x_hybrida_Sun_Chimes_Red_0zz.jpg/960px-Diascia_x_hybrida_Sun_Chimes_Red_0zz.jpg)
- Diascia barberaecharm flower
- Diascia rigescens 'Forge Cottage' (v)twinspur 'Forge Cottage'
- Diascia 'Candy Floss'twinspur 'Candy Floss'
- Diascia 'Diascot'twinspur 'Diascot'
- Diascia 'Strawberry Sundae'twinspur 'Strawberry Sundae'
- Diascia 'Summer Delight'twinspur 'Summer Delight'
- Diascia Apricot Delight ('Codicot') (Sun Chimes Series)twinspur [Apricot Delight]