Planting windows for Waterloo Municipal Airport
Computed from Waterloo 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 2 – Mar 16 | May 4 – May 11 | — |
| 🫑 Peppers | Feb 16 – Mar 2 | May 11 – May 18 | — |
| 🥬 Lettuce | Mar 16 – Mar 30 | Mar 30 – Apr 13 | Mar 30 – Apr 27 |
| 🫛 Peas | — | — | Mar 16 – Mar 30 |
| 🥕 Carrots | — | — | Apr 6 – Apr 27 |
| 🥦 Broccoli | Mar 9 – Mar 23 | Apr 6 – Apr 20 | — |
| 🥬 Kale | Mar 16 – Mar 30 | Mar 30 – Apr 13 | Mar 30 – Apr 13 |
| 🥒 Cucumbers | Mar 30 – Apr 6 | May 4 – May 11 | May 4 – May 11 |
| 🥒 Zucchini | Mar 30 – Apr 6 | May 4 – May 11 | May 4 – May 11 |
| 🫘 Green Beans (Bush) | — | — | May 4 – May 11 |
| 🌽 Sweet Corn | — | — | May 4 – May 11 |
| 🌿 Basil | Mar 16 – Mar 30 | May 4 – May 11 | May 11 – May 18 |
| 🧄 Garlic | — | — | Fall: Aug 29 – Sep 26 |
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 Waterloo Municipal Airport's dates automatically after a lookup.
Reading the season in Waterloo Municipal Airport
Roughly 166 frost-free days gives Waterloo Municipal Airport gardeners room for nearly every common vegetable. Warm-season crops go out after Apr 27; a fall garden sown in late summer matures comfortably before the Oct 10 frost.