Seed starting calendar for Zone 3
Zone 3's last spring frost lands around May 15, and every date below is counted back from it. Sow indoors in the window shown, then move the seedlings out once the transplant date arrives.
Short, cool season. Start most warm crops indoors and protect from late frosts.
| Crop | Start indoors | Move outside |
|---|---|---|
| Onion | Mar 6 to Mar 20 | May 1 to May 15 |
| Leek | Mar 6 to Mar 20 | May 1 to May 15 |
| Celery | Mar 6 to Mar 20 | May 15 to May 29 |
| Pepper | Mar 20 to Apr 3 | May 29 to Jun 12 |
| Sage | Mar 20 to Apr 3 | May 15 to May 29 |
| Eggplant | Mar 20 to Apr 3 | May 29 to Jun 12 |
| Hot Pepper | Mar 20 to Apr 3 | May 29 to Jun 12 |
| Tomato | Apr 3 to Apr 17 | May 22 to Jun 5 |
| Kale | Apr 3 to Apr 17 | May 1 to May 15 |
| Broccoli | Apr 3 to Apr 17 | May 1 to May 15 |
| Cabbage | Apr 3 to Apr 17 | May 1 to May 15 |
| Marigold | Apr 3 to Apr 17 | May 15 to May 29 |
| Parsley | Apr 3 to Apr 17 | May 1 to May 15 |
| Oregano | Apr 3 to Apr 17 | May 15 to May 29 |
| Chives | Apr 3 to Apr 17 | May 1 to May 15 |
| Cauliflower | Apr 3 to Apr 17 | May 1 to May 15 |
| Tomatillo | Apr 3 to Apr 17 | May 22 to Jun 5 |
| Collard Greens | Apr 3 to Apr 17 | May 1 to May 15 |
| Basil | Apr 17 to May 1 | May 22 to Jun 5 |
| Brussels Sprouts | Apr 17 to May 1 | May 29 to Jun 12 |
Other zones
Plant at the right time this season
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