how long does it take for flanders poppy seeds to germinate
Seeds will sprout in 20-30 days. Starting. Sow on the surface of the soil, or barely cover seeds. Thin to a minimum of 15cm (6â³) apart. Growing. Poppies are easy to grow and the self-sow with abandon, without becoming weedy.eeds will sprout in 20-30 days. Starting. Sow on the surface of the soil, or barely cover seeds. Thin to a minimum of 15cm (6â³) apart. Growing. Poppies are easy to grow and the self-sow with abandon, without becoming weedy.