Planting calendar
When to plant broccoli
Broccoli are a cool-season crop you start indoors and transplant out. Find your USDA zone in the table for the dates. In zone 7, start seeds indoors around March 11 and transplant around April 1.
| USDA zone | Start seeds indoors | Sow / transplant outside |
|---|---|---|
| Zone 3 | April 10 | May 1 |
| Zone 4 | April 5 | April 26 |
| Zone 5 | March 26 | April 16 |
| Zone 6 | March 17 | April 7 |
| Zone 7 | March 11 | April 1 |
| Zone 8 | February 21 | March 14 |
| Zone 9 | January 24 | February 14 |
| Zone 10 | December 27 | January 17 |
Anchored to approximate zone last-frost dates. A guide — confirm locally.
FAQ
When should I plant broccoli?
Broccoli are a cool crop usually started indoors and transplanted out. In zone 7 that's about March 11 indoors and April 1 outside; the table shows every zone. Adjust to your local last-frost date.
Can I start broccoli earlier in a warm zone?
Yes — warmer zones have an earlier last frost, so the dates shift earlier. Compare the zones in the table; a zone 9 garden plants weeks ahead of zone 5.
A planting guide, not a guarantee. Dates anchor to approximate average last-frost dates per USDA zone and will shift with your microclimate and the season. Check the local forecast before planting.