When to plant Broccoli in Zone 6b
In Zone 6b, Broccoli: start seeds indoors around Feb 25–Mar 11; transplant outdoors around Apr 1–Apr 15; direct sow outdoors around Jul 19–Aug 9. Expect to harvest around Jun 5–Jun 19.
| Step | When |
|---|---|
| Start seeds indoors | Feb 25 – Mar 11 |
| Transplant outdoors | Apr 1 – Apr 15 |
| Direct sow outdoors | Jul 19 – Aug 9 |
| Harvest | Jun 5 – Jun 19 |
| Harvest | Sep 22 – Oct 13 |
Tip: A cool-season brassica. Transplant in early spring or late summer; it bolts in midsummer heat.
Zone 6b averages a last spring frost around Apr 15 and a first fall frost around Oct 25. These are zone averages — look up your ZIP for your exact area.
See the full Zone 6b calendar in the tool →