Sow indoors for surest results, January-March or September-October, These beautiful blooms with their rich colours are great in every garden and make excellent cut flowers. Hardy Annual. Indoor Planting: Soak the seeds for approx. 12 hours in water before sowing. Sow seeds 0.5cm deep in trays of moist compost, be careful not to over-water. Store in a warm place at an approx. temperature of 13-16˚c (55-60˚f). Growing on:When the seedlings are strong enough to handle they can be transplanted into bigger pots or trays. Do not overcrowd the plants and keep in a warm, light position. Once all chance of frost has passed the plants can be transplanted direct into your desired location in May. Harden off first. Outdoor Planting: Sow seeds 0.5cm deep in flowering location, thin to above spacings. The Sweet Peas will require support as they start to grow. To prolong flowering deadhead flowers when required.