Papaver Plant Care:
Prefers loose soil with excellent drainage and can tolerate sandy or rocky soils. Avoid overly rich soils. Division is difficult due to a long taproot. Blooms profusely under cool growing conditions. May go dormant in hot summers. Shear spent flowers to prevent seed set. Cut back after flowering to extend individual plant life. Self seeds freely. When foliage declines, around end of July, pull by hand or cut down foliage, new leaves in late summer/fall should be left for winter.