P. somniferum and P. rhoeas both reseed well in my garden, both annuals. It is important to sow them early while the temps are still cold/cool. Some like to sow them atop of snow in order to see the seeds and how thickly they're sown. I direct sow in February or March.
"...and don't think the garden loses its ecstasy in winter. It's quiet, but the roots are down there riotous." Rumi
