Papaver seeds paeoniflorum Summer Fruits Seeds - poppy seeds Ref: TM01402340 SowingSow from March to May outdoors where they are to flower. Rake the soil to a fine tilth and sow 1.5mm (1/16in) deep in rows 30cm (12in) apart.<p>A sowing can also be made in late August/September for overwintering, when they will flower in late spring/early summer.GrowingThin out the young plants to 30cm (12in) apart when the seedlings are large enough to handle.Aftercare Prefers a well drained soil and full sun but will grow in most sites and soils. Remove the seed pods as they form unless you wish them to self seed.FloweringSummercroppingPlant typeHardy Annual Price: £1.99 Quantity: