USDA Zone 4b Planting Calendar (2026)
Zone 4b (-25 to -20°F) has an average last spring frost on May 5 and first fall frost on Oct 1 — about 149 growing days. Typical areas: Minneapolis MN, Burlington VT.
| Vegetable | Start Indoors | Sow / Transplant | Harvest From |
|---|---|---|---|
| Beet | — | Apr 7 | Jun 1 |
| 🥦 Broccoli | Mar 31 | Apr 21 | Jun 25 |
| 🫘 Bush Beans | — | May 12 | Jul 6 |
| 🥬 Cabbage | Mar 24 | Apr 21 | Jul 10 |
| 🥕 Carrot | — | Apr 14 | Jun 23 |
| 🥦 Cauliflower | Mar 24 | Apr 21 | Jul 5 |
| 🌽 Corn | — | May 19 | Aug 7 |
| 🥒 Cucumber | Apr 14 | May 19 | Jul 13 |
| 🧄 Garlic | — | Oct 20 | Jun 17 |
| 🥬 Kale | Mar 31 | Apr 14 | Jun 8 |
| 🥬 Lettuce | Apr 7 | Apr 14 | May 29 |
| 🧅 Onion | Feb 24 | Apr 7 | Jul 16 |
| 🟢 Peas | — | Mar 24 | May 23 |
| 🫑 Pepper | Mar 10 | May 19 | Jul 28 |
| 🥔 Potato | — | Apr 21 | Jul 20 |
| 🌶️ Radish | — | Apr 7 | May 5 |
| 🍃 Spinach | — | Mar 31 | May 10 |
| 🎃 Summer Squash | Apr 14 | May 12 | Jul 1 |
| 🍅 Tomato | Mar 24 | May 12 | Jul 26 |
| 🥒 Zucchini | Apr 14 | May 12 | Jul 1 |