Potentilla Seeds atrosanguinea Fireball Mixed Ref: TM01402570 SowingSow February to June or September to October. Place seed on the surface of a good free draining, damp seed compost and cover with a fine sprinkling of compost or vermiculite. Seal container inside a polythene bag and place at 15-20C (59-68F) until after germination which can take 1 to 3 months. Do not exclude light, as this helps germination.GrowingTransplant seedlings when large enough to handle into trays or 7.5cm (3 inch) pots. Grow on in cooler conditions for 10 to 15 days before planting out after all risk of frost, 30-45cm (12 to 18 inches) apart<p>Summer sowings can be overwintered for planting next spring.</p>Aftercare FloweringSummercroppingPlant typeHardy Perennial Price: £1.99 Quantity: