Botanical name: Diascia ‘Coral Belle’ Family: Scrophulariaceae Common name: Twinspur ‘Coral Belle’ Skill rating: Easy [images] Origin Africa. Type of plant Herbaceous perennial, usually treated as an annual. Hardiness Between Frost hardy (can withstand temperatures down to -5˚C (23˚F)) and half hardy (can withstand temperatures down to 0˚C (32˚F)). Hardiness rating H3 to 4. Eventual size 20cm height by 40cm spread. Growth rate Fast, will reach full height in a couple of years if grown as a perennial. Shape it grows into Slightly straggly, spreading mat of stems growing upright and bearing leaves and flowers. Colour Flowers are salmon pink with yellow throats. Dark green foliage. Features Five petalled flowers with two ‘spurs’ on the reverse. Heart shaped, opposite leaves provide good a good foil for the flowers. Season/s of interest Flowers throughout summer and autumn. Where to grow it / Happiest in full sun or part shade and well drained soil. Prefers humus rich soil. What to use it for Generally used as an annual in summer bedding or container displays. Can also be used on slopes or in borders. Could be used in cottage style, informal or Mediterranean style gardens. While strictly speaking this plant is a perennial, it is unlikely to survive the winter in the UK and is generally treated as a annual. If you want to keep it from year to year you’re better off How to look after it Water regularly in dry periods. If you intend to keep it as a perennial, protect it from frosts, for example by overwintering it in a greenhouse. How to prune it Deadhead regularly or trim lightly after the main flush of flowers to keep it neat and encourage further flowering. How to propagate it Take softwood stem-tip cuttings in spring, or in the summer from the re-growth resulting from trimming or deadheading the plant. Protect the cuttings from frost over winter. Seeds will only be produced by the plant if more than one cultivar or species is grown and are unlikely to come true to type. This does give a good opportunity to have a go at deliberate hybridisation to come up with new variations. Sow seeds at 15˚C, they should flower in the same year. Common problems Slugs and snails can be a problem. Other useful information Received the Royal Horticultural Society ‘Award of Garden Merit’. The plant has the common name ‘twinspur’ due to the two spurs which stick out of the back of the flower, and distinguish it from similar flowers such as Nemesia.