Sow March to May. Sow thinly just below the surface in well-cultivated soil which has been raked to a fine tilth.
When large enough to handle, thin seedlings to 15-30cm (6-12in) apart.
Removing spent flower heads will encourage further blooming.
Caution: harmful if eaten.
Culinary note: All poppies are poisonous. However, the seeds produced by somniferum can be eaten. Typically, they are used in bakery recipes.