Helianthemum Seeds - x Hybrids Mixed Seeds Ref: TM01408226 Sowingsow from late winter to early summer on the surface of John Innes Seed Compost. Make sure the compost is moist but not wet and seal in a polythene bag untill afetr germination which usually takes 15-20 days at 21-24ºC (70-75ºF).GrowingTransplant, when large enough to handle, into 8cm (3in) pots, grow on in a coldframe and later plant out 30 - 40cm (12 - 18in) apart into well drained soil in a sunny position.Aftercare FloweringEarly to Mid-SummercroppingPlant typeHalf-hardy Evergreen Price: £1.89 Quantity: