Why these dates work in zone 7a
Zone 7a's last spring frost averages Apr 15 and first fall frost Oct 25 — about 193 frost-free days. Cauliflower tolerates light frost, so you can set plants out ahead of the last-frost date and keep harvesting into the cooler fall. Starting seeds indoors 6 weeks ahead gives strong transplants ready the moment the soil warms. There's also room for a fall succession sowing around Jul 19 for a second harvest before frost.
Common questions
How long does cauliflower take to grow in zone 7a?
Cauliflower matures in about 70–100 days from transplanting. In zone 7a that means setting plants out around Mar 25 and first picking around Jun 3.
Will cauliflower survive frost in zone 7a?
Yes — cauliflower tolerates light frost. In zone 7a you can set plants out a little before the last frost (around Apr 15) and keep harvesting past the first fall frost (around Oct 25).
Can I plant a second crop of cauliflower in zone 7a?
Yes — in zone 7a there's time for a fall sowing around Jul 19 for a second harvest before frost.
For soil, spacing, pests and companion planting, see the full cauliflower growing guide →
