Planting windows for Columbia 8 N
Computed from Columbia 8 N's own frost dates. Click any crop for the full zone-4 growing guide — varieties, spacing, fall plantings, and more.
| Crop | Start seeds indoors | Transplant | Direct sow |
|---|---|---|---|
| 🍅 Tomatoes | Mar 12 – Mar 26 | May 14 – May 21 | — |
| 🫑 Peppers | Feb 26 – Mar 12 | May 21 – May 28 | — |
| 🥬 Lettuce | Mar 26 – Apr 9 | Apr 9 – Apr 23 | Apr 9 – May 7 |
| 🫛 Peas | — | — | Mar 26 – Apr 9 |
| 🥕 Carrots | — | — | Apr 16 – May 7 |
| 🥦 Broccoli | Mar 19 – Apr 2 | Apr 16 – Apr 30 | — |
| 🥬 Kale | Mar 26 – Apr 9 | Apr 9 – Apr 23 | Apr 9 – Apr 23 |
| 🥒 Cucumbers | Apr 9 – Apr 16 | May 14 – May 21 | May 14 – May 21 |
| 🥒 Zucchini | Apr 9 – Apr 16 | May 14 – May 21 | May 14 – May 21 |
| 🫘 Green Beans (Bush) | — | — | May 14 – May 21 |
| 🌽 Sweet Corn | — | — | May 14 – May 21 |
| 🌿 Basil | Mar 26 – Apr 9 | May 14 – May 21 | May 21 – May 28 |
| 🧄 Garlic | — | — | Fall: Aug 18 – Sep 15 |
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 Columbia 8 N's dates automatically after a lookup.
Reading the season in Columbia 8 N
At about 145 frost-free days, Columbia 8 N rewards efficiency: start warm-season crops indoors, favor short-season varieties, and lean on cold-tolerant crops — peas, kale, roots — that shrug off the shoulder-season frosts on either end.