Dianthus barbatus Summer Sundae Seeds Ref: TM01407390 SowingSow February to April. Germinate at 18-20C (64-68F) on the surface of a good free draining, damp seed compost. Do not cover the seed. Place in a propagator or seal container inside a polythene bag until after germination which usually takes 7-21 days. Do not exclude light, as this helps germination.GrowingTransplant seedlings when large enough to handle into trays or 7.5cm (3in) pots. Grow on in cooler conditions for 10-15 days before planting out after all risk of frost, 30cm (12in) apart.Aftercare Prefers a rich, well drained soil in full sun.FloweringcroppingPlant typeHardy Annual Price: £1.99 Quantity: