The RHS Hampton Court Flower Show showcased many roses, including rose of the year 'Lady Marmalade', a thorny floribunda variety from Harkness (see p6).
Garden writer Peter Seabrook said: "There's a flood of new plants coming through. Thompson & Morgan has shown with Digitalis 'Illumination' that you can reach £1m sales with a single plant.
"They've already sold 160,000 with micropropagation and that could reach 300,000 in two years, all helped by being Chelsea plant of the year. Several Dutch growers I've spoken to want to be involved in that next year. This all shows the importance of novelty."
The top new plants from Plantarium (Boskoop, 21-24 August) include: Buddleja Purple Chip ('Purple Haze') produced by Dr Dennis Werner; Carex oshimensis 'Everlime' (Evercolor) from Fitzgerald Nurseries; Dianthus 'Dochiba' (Diadoble Crimson Picotee) produced by Hem Genetics; Geranium 'Azure Rush' by Blooms of Bressingham; Rhododendron 'Henri Nannen' by Bruns Pflanzen Export; and Verbena bonariensis 'Lollipop' by Green Leaf Plants.