Intense deep blue, 6cm (2½in) double powder-puff flowers.Optimum Germination Temperature: 65-70F (18-20C). Sowing Depth: ¼in (6mm). Sowing Time: Sow March-april or August-September for overwintering. The seed should be sown outdoors where it is to flower in spring or autumn and thinned out to 12in (30cm) apart.Plant in full sun in ordinary garden soil.