Can You Still Sow Larkspur and Annual Poppies in Late Spring? Zone 5/6 Guide

Larkspur: Timing and Chilling Requirements

Larkspur (Consolida) needs 3.5–4 months from seed to bloom and a chilling period. Refrigerate damp seeds before sowing. Spring sowing is too late for flowers this year; fall sowing is ideal.

Annual Poppies: Faster Bloom but Heat-Loving

Shirley, Corn, and California poppies bloom 55–65 days after germination. They thrive in hot, sunny conditions. A late spring sowing might flower in fall if a heat wave occurs.

Alternative Strategies for Late Planting

For larkspur, consider buying started plants. For poppies, sow now in a sunny spot and hope for warm weather. Both may be grown as fall-sown annuals for next spring.

Recommended Seed Sources

Johnny's Selected Seeds (johnnyseeds.com) offers a wide selection of both genera with detailed cultural info.