WHEN TO SOW
February to April
WHERE TO SOW
Sow seeds on the surface of good free draining seed compost and lightly cover with a sprinkling of vermiculite. Place in a propagator or a warm place at a temperature of 18-20°C (64-68°F) until after germination which usually takes 10-21 days.
WHAT TO DO NEXT
Transplant seedlings when large enough to handle into pots or trays. Gradually acclimatise plants to cooler conditions for a few weeks before planting out after all risk of frost has passed 23cm (9-12") apart. Seeds can also be sown outdoors where they are to flower. Sow 6mm (1/4") deep in rows 23cm (9") apart.
June to September
With regular dead heading, Phlox will flower all summer in borders or containers.