Lathyrus latifolius Seeds mixed sweet pea seeds Ref: TM01408294 SowingSow mid January to mid March. Sow in trays, pots, etc of good seed compost in a propagator or warm place to maintain an optimum temperature of 65-70F (18-20C). Sowing Depth: ¼in (6mm). Germination usually takes 7-21 days.GrowingTransplant seedlings when large enough to handle into 7.5cm (3in) pots. Harden off and plant out when all risk of frost has passed 30cm (12in) apart.Aftercare Plant in full sun and in ordinary garden soil.FloweringAll SummercroppingPlant typeHardy Perennial Climber Price: £1.99 Quantity: