Silene is a perennial that is suitable for rock gardens and borders, flowering from July to late September.
Week 10: Sow the seeds in trays of seed compost and germinate at a temperature of 20°C (68°F).
Germination should take up to a week.
Week 13: Prick out the seedlings into cell trays / boxes and gradually harden off in a cold frame.
Week 21: Plant out 150mm (6") in a sunny or partially shaded position.
Week 27>: If required, collect seed and sow immediately.
Week 36; Prick out seedlings and grow on in a cold frame until planting out time the following year.