This might be an F2 Hybrid, but the effect and performance is stunning! Extra large, double flowers in a wide range of colours, on naturally spreading plants. They also make excellent windowsill pot plants. Height: 10-15cm (4-6in).
Sow in late February or March on the surface of a good seed compost. Germination takes 10-21 days at 18-21C (65-70F). Don't exclude light, sealing in a polythene bag after sowing is helpful.