When to plant Brussels Sprouts in Zone 6b
In Zone 6b, Brussels Sprouts: start seeds indoors around Mar 4–Mar 18; transplant outdoors around Apr 8–Apr 22. Expect to harvest around Jul 17–Jul 31.
| Step | When |
|---|---|
| Start seeds indoors | Mar 4 – Mar 18 |
| Transplant outdoors | Apr 8 – Apr 22 |
| Harvest | Jul 17 – Jul 31 |
Tip: A long-season crop best for fall — the sprouts sweeten after a frost or two.
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 →