Watermelon planting windows by zone
| Zone | Main planting window | |
|---|---|---|
| Zone 1 | Jun 29 – Jul 6 | transplant outdoors |
| Zone 2 | Jun 13 – Jun 20 | transplant outdoors |
| Zone 3 | May 29 – Jun 5 | transplant outdoors |
| Zone 4 | May 19 – May 26 | transplant outdoors |
| Zone 5 | May 6 – May 13 | transplant outdoors |
| Zone 6 | Apr 24 – May 1 | transplant outdoors |
| Zone 7 | Apr 13 – Apr 20 | transplant outdoors |
| Zone 8 | Mar 29 – Apr 5 | transplant outdoors |
| Zone 9 | Mar 6 – Mar 13 | transplant outdoors |
| Zone 10 | Feb 8 – Feb 15 | transplant outdoors |
| Zone 11 | Nearly year-round | frost-free |
| Zone 12 | Nearly year-round | frost-free |
| Zone 13 | Nearly year-round | frost-free |
Each zone link above has the complete schedule — indoor seed-starting, direct sowing, 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.