Brussels Sprouts planting windows by zone
| Zone | Main planting window | |
|---|---|---|
| Zone 1 | Jun 15 – Jun 29 | transplant outdoors |
| Zone 2 | May 30 – Jun 13 | transplant outdoors |
| Zone 3 | May 15 – May 29 | transplant outdoors |
| Zone 4 | May 5 – May 19 | transplant outdoors |
| Zone 5 | Apr 22 – May 6 | transplant outdoors |
| Zone 6 | Apr 10 – Apr 24 | transplant outdoors |
| Zone 7 | Mar 30 – Apr 13 | transplant outdoors |
| Zone 8 | Mar 15 – Mar 29 | transplant outdoors |
| Zone 9 | Feb 20 – Mar 6 | transplant outdoors |
| Zone 10 | Jan 25 – Feb 8 | transplant outdoors |
| Zone 11 | Coolest months (Oct–Mar) | frost-free |
| Zone 12 | Coolest months (Oct–Mar) | frost-free |
| Zone 13 | Coolest months (Oct–Mar) | frost-free |
Each zone link above has the complete schedule — indoor seed-starting, and season-fit notes. Zone dates are typical medians; for windows built on your own city's frost dates, use the frost date lookup and planting calendar.