June sits inside zone 3's frost-free season (May 15 – Sep 20) — everything on this page can go straight into warm soil.
| 🫑 Peppers | May 29 – Jun 5 | 60–90 days to maturity |
| 🍆 Eggplant | May 29 – Jun 5 | 65–80 days to maturity |
| 🍉 Watermelon | May 29 – Jun 5 | 75–95 days to maturity |
| 🍈 Cantaloupe | May 29 – Jun 5 | 75–90 days to maturity |
| 🌶️ Okra | Jun 5 – Jun 12 | 55–65 days to maturity |
| 🍠 Sweet Potatoes | May 29 – Jun 12 | 90–120 days to maturity |
| 🍉 Watermelon | May 29 – Jun 5 | 75–95 days to maturity |
| 🍈 Cantaloupe | May 29 – Jun 5 | 75–90 days to maturity |
| 🌶️ Okra | May 29 – Jun 12 | 55–65 days to maturity |
| 🌿 Basil | May 29 – Jun 5 | 30–60 days to maturity |
| 🥬 Kale | Jun 28 – Jul 12 | 55–65 days to maturity |
| 🍃 Collard Greens | Jun 28 – Jul 12 | 60–75 days to maturity |
| 🥬 Cabbage | Jun 14 – Jun 28 | 65–85 days to maturity |
| 🥦 Broccoli | Jun 14 – Jun 28 | 60–75 days to maturity |
| 🥦 Cauliflower | Jun 14 – Jun 28 | 60–80 days to maturity |
| 🥕 Carrots | Jun 28 – Jul 12 | 60–75 days to maturity |
Windows use zone 3's typical frost dates (May 15 / Sep 20). For your own city's dates, run the frost lookup — the planting calendar then localizes everything automatically.
13 crops can go in the ground: peppers, eggplant, watermelon, cantaloupe, okra, sweet potatoes, basil, kale, and 5 more. Exact windows are in the tables above — early and late in the month can differ by a full frost date.
The spring window has passed; tomatoes set out this late won't beat the Sep 20 average first frost to ripeness. Plan for next spring's seed-starting instead.