
Oriental poppy is the most striking perennial poppy, with huge, cup-shaped, papery blooms in late spring to early summer on stems up to 4 feet. Colors: red, salmon, orange, crimson, white. Performs poorly in hot summers; flowers may need staking. Plants go dormant after blooming.
Spring, space 2–3 feet. Loosen soil 12–15 inches, add 2–4 inches compost. Plant at container depth, water thoroughly.
Spring: thin compost + 2-inch mulch. Summer dormancy: water only in drought. Autumn: foliage resumes until frost, persists over winter. After soil freezes, apply 4–6 inch protective mulch to prevent heaving. Gradually remove in spring. Divide early spring or summer.
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