At its best:
Jun, Jul, Aug, Sep
Fill pots with seed compost, tap to settle, and lightly press the surface with the base of a pot. Space your seeds evenly over the compost.
Cover seeds thinly with fine, sieved compost, or use a layer of vermiculite, a sterile material perfect for covering seeds.
Germination rates vary between varieties. Wait until the seedlings are well developed with good roots before pricking out.
Handle seedlings by their first leaves to avoid crushing the stem and plant individually into pots of seed compost.
By late May or early June, late frosts should have passed and outdoor conditions will be warm enough to plant your bedding into their final position outside for a bright summer display.