Most Diascia have pink flowers, although the colour range delves into lavender and soft apricot orange. Apparently in South Africa they have a short flowering season before the heat sends them into dormancy. When grown as half hardy perennials in the UK and other temperate areas, the cooler summers allow for an almost continuous flowering season. The tallest is D. rigescens which can reach 60cm(2ft) with quite substantial spires of flowers. The recent hybrid 'Sundiascia Rose Pink' would seem to be a hybrid with D. rigescens in its parentage.
|'Sundiascia Rose Pink'|
We used to grow both nemesia and diascia when we ran our nursery and my main memory of them is that the latter were almost impossible to handle as the tiny stems tangled and twisted. Plants taken to shows were usually unsaleable on arrival! Penhow nurseries have specialised in both genera for a number of years, winning many Gold Medals including nine at the Chelsea Flower Show. Their displays of perfect cushions of flower en masse do put them in the spectacular category! Each triangular patch of colour is made up of three huge, beautifully tended plants.
|One of Penhow Nurseries Chelsea exhibits|