Catananche seeds caerulea Seeds Ref: TM01407963 SowingSow from late winter to spring in a good seed compost just covering the seed with compost and gently firm down compost. Germination usually takes 21-25 days at 19-24C (65-75F).GrowingWhen seedlings are large enough to handle, transplant and grow on in cooler conditions. Gradually acclimatise to outdoor conditions for 10-15 days before planting out after all risk of frost, 45cm (18in) apart in a sunny spot on light well drained soil.Aftercare FloweringSummercroppingPlant typeHardy Herbaceous Perennial Price: £1.99