These 8- to 24-inch, easygoing, sometimes unpredictable, and fun-to-grow plants work well in a natural-style border or as fill-in among ground covers. Seed companies offer varieties and strains in many colors.
Sow seeds directly in the ground in full sun. In cold-winter climates, plant in early spring, as soon as the ground is soft enough for digging. In mild-winter climates, plant in fall.
California poppies prefer soil that drains very well and may be on the dry side. Don’t try transplanting seedlings; their deep, brittle taproots won’t appreciate it. Poppies form unattractive dry mounds after they finish blooming. Be prepared to get rid of them.
In mild climates, plants can reseed themselves and come back year after year. In colder regions, cut off the seed head, and save the seeds in a cool, dry place until next year.