Phlox drummondii Phlox of Sheep Seeds Ref: TM01407410 SowingSow from late winter to early summer 1.5mm (1/8in) deep in a good seed compost. Make sure that the compost is moist but not wet and seal in a polythene bag, exclude light until after germination which usually takes 10-21 days at 18-20C (65-70F). Ensure compost is moist but not over wet.<p>They can also be sown outdoors in spring where they are to flower.GrowingTransplant when large enough to handle into 7.5cm (3in) pots. Pinch out the growing points when 7.5 (3in) high to ensure a bushy habit. Later plant out 23cm (9in) apart into rich well drained soil and full sun.Aftercare FloweringSummercroppingPlant typeHalf-hardy Annual Price: £1.69 Quantity: