Planting windows for Mason City Municipal Airport
Computed from Mason City Municipal Airport's own frost dates. Click any crop for the full zone-5 growing guide — varieties, spacing, fall plantings, and more.
| Crop | Start seeds indoors | Transplant | Direct sow |
|---|---|---|---|
| 🍅 Tomatoes | Mar 8 – Mar 22 | May 10 – May 17 | — |
| 🫑 Peppers | Feb 22 – Mar 8 | May 17 – May 24 | — |
| 🥬 Lettuce | Mar 22 – Apr 5 | Apr 5 – Apr 19 | Apr 5 – May 3 |
| 🫛 Peas | — | — | Mar 22 – Apr 5 |
| 🥕 Carrots | — | — | Apr 12 – May 3 |
| 🥦 Broccoli | Mar 15 – Mar 29 | Apr 12 – Apr 26 | — |
| 🥬 Kale | Mar 22 – Apr 5 | Apr 5 – Apr 19 | Apr 5 – Apr 19 |
| 🥒 Cucumbers | Apr 5 – Apr 12 | May 10 – May 17 | May 10 – May 17 |
| 🥒 Zucchini | Apr 5 – Apr 12 | May 10 – May 17 | May 10 – May 17 |
| 🫘 Green Beans (Bush) | — | — | May 10 – May 17 |
| 🌽 Sweet Corn | — | — | May 10 – May 17 |
| 🌿 Basil | Mar 22 – Apr 5 | May 10 – May 17 | May 17 – May 24 |
| 🧄 Garlic | — | — | Fall: Aug 20 – Sep 17 |
Want this for all 50 crops, or as a printable seed-shelf schedule? Use the planting calendar and the seed starting scheduler — both can use Mason City Municipal Airport's dates automatically after a lookup.
Reading the season in Mason City Municipal Airport
Roughly 151 frost-free days gives Mason City Municipal Airport gardeners room for nearly every common vegetable. Warm-season crops go out after May 3; a fall garden sown in late summer matures comfortably before the Oct 1 frost.