How To Grow Poppies From Seed Outdoors. Germination should occur in about two weeks. Most poppies are hardy beyond usda zone 4, but some will survive in 3 or even 2.
Prepare the soil by removing weeds and rake the ground level. Divide poppies in autumn to allow time for the taproot to restore itself. When to plant sow in spring
Once annual poppies have gone to seed, pull up parent plants and compost.
Opium poppies are annual wildflowers that come in a wide range of colors, from white to deep purple (with scarlet and pink stops along the way). Plant poppies from seed into poor to average soil in a sunny location for a good start to growing poppy flowers in your garden. Simply pull up unwanted plants (an easy task) before they bloom. Till up the area you want to plant poppies in.