Freeze dates are based on NCEI Annual/Seasonal Normals for a city in Zone 4. It's important to know that these dates are a generalization and not absolute. For more precise freeze dates, visit Weather.com for current weather conditions before planting. Or use the Freeze Date Tool located at <https://mrcc.purdue.edu/freeze/freezedatetool>.
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Arugula | Mar 09 to Mar 24 | Apr 14 to Apr 28 | Apr 07 to Apr 14 | May 17 to May 24 | Spring |
| Asparagus* | — | — | Apr 21 to May 05 | Apr 21 to May 05 | Spring |
| Basil | Mar 24 to Apr 07 | May 19 to Jun 02 | May 19 to Jun 02 | Jul 18 to Aug 16 | Spring |
| Beans, Common | — | — | May 19 to May 26 | Jul 18 to Aug 24 | Spring |
| Beans, Green | — | — | May 12 to Jun 02 | Jul 11 to Aug 31 | Spring |
| Beets | — | Apr 21 to May 05 | Apr 07 to Apr 14 | Jun 06 to Jul 03 | Spring |
| Bell Peppers | Feb 24 to Mar 09 | May 19 to May 26 | — | Aug 12 to Sep 05 | Spring |
| Bok Choy | Mar 24 to Apr 07 | May 19 to May 26 | May 19 to May 26 | Jul 03 to Jul 10 | Spring |
| Broccoli | Mar 09 to Mar 24 | Apr 21 to May 05 | Apr 07 to Apr 14 | Aug 05 to Aug 22 | Spring |
| Brussels Sprouts | Mar 24 to Apr 07 | Apr 21 to May 05 | Apr 07 to Apr 14 | Aug 15 to Sep 11 | Spring |
| Cabbage | Mar 09 to Mar 24 | Apr 21 to May 05 | Apr 07 to Apr 14 | Aug 05 to Aug 22 | Spring |
| Carrots | — | — | Apr 07 to Apr 21 | Jun 06 to Jul 30 | Spring |
| Cauliflower | Mar 24 to Apr 07 | Apr 28 to May 12 | — | Aug 26 to Sep 19 | Spring |
| Celery | Feb 10 to Feb 24 | May 12 to May 26 | May 05 to May 19 | Sep 12 to Oct 06 | Spring |
| Chives | Mar 09 to Mar 24 | Apr 14 to Apr 21 | Apr 14 to Apr 21 | Jun 20 to Jul 24 | Spring |
| Cilantro | — | — | May 05 to May 19 | Jul 08 to Aug 03 | Spring |
| Collards | Mar 24 to Apr 07 | Apr 21 to May 05 | Apr 14 to Apr 21 | Jul 03 to Jul 20 | Spring |
| Cucumbers | Apr 14 to Apr 21 | May 12 to May 26 | May 19 to May 26 | Jul 18 to Aug 24 | Spring |
| Dill | — | — | Apr 28 to May 19 | Jul 07 to Aug 17 | Spring |
| Eggplant | Mar 09 to Mar 24 | May 19 to May 26 | — | Jul 28 to Sep 23 | Spring |
| Fava Beans | — | — | Apr 07 to Apr 14 | Jun 26 to Jul 13 | Spring |
| Fennel | Mar 24 to Apr 07 | May 12 to May 19 | May 05 to May 19 | Jul 27 to Aug 17 | Spring |
| Kale | Mar 09 to Mar 24 | Apr 21 to May 05 | Apr 07 to Apr 14 | Jun 06 to Jul 13 | Spring |
| Kohlrabi | Mar 24 to Apr 07 | Apr 14 to Apr 21 | Apr 07 to Apr 14 | May 30 to Jun 13 | Spring |
| Leeks | Feb 24 to Mar 09 | Apr 14 to Apr 28 | — | Oct 11 to Nov 14 | Spring |
| Lettuce | Mar 24 to Apr 07 | Apr 14 to Apr 21 | Apr 07 to Apr 14 | May 27 to Jul 13 | Spring |
| Melons, Cantaloupe | Apr 14 to Apr 28 | May 05 to May 19 | May 12 to May 19 | Jul 31 to Sep 16 | Spring |
| Melons, Honeydew | Apr 14 to Apr 21 | May 19 to May 26 | May 19 to May 26 | Aug 12 to Sep 03 | Spring |
| Melons, Watermelon | Apr 14 to Apr 28 | May 19 to May 26 | May 12 to May 19 | Aug 10 to Sep 16 | Spring |
| Mustard Greens | Jun 13 to Jul 04 | — | — | Jul 23 to Sep 02 | Spring |
| Okra | Apr 07 to Apr 21 | May 19 to May 26 | May 19 to Jun 02 | Jul 28 to Sep 10 | Spring |
| Onions | — | Apr 07 to Apr 21 | — | Jul 06 to Jul 30 | Spring |
| Oregano | Feb 24 to Mar 24 | May 12 to May 26 | — | Jul 21 to Aug 24 | Spring |
| Parsley | Feb 24 to Mar 09 | May 12 to May 26 | Apr 07 to May 12 | Jun 16 to Aug 10 | Spring |
| Parsnips | — | — | Apr 07 to Apr 14 | Jul 31 to Aug 22 | Spring |
| Peanuts | — | — | May 26 to Jun 09 | Sep 03 to Oct 17 | Spring |
| Peas | — | — | Apr 07 to Apr 14 | Jun 06 to Sep 11 | Spring |
| Peppers, Jalapeno | Feb 24 to Mar 09 | May 19 to May 26 | — | Jul 18 to Aug 14 | Spring |
| Potatoes | — | — | Apr 07 to Apr 21 | Jul 06 to Aug 19 | Spring |
| Pumpkins | Apr 14 to Apr 28 | May 19 to May 26 | May 19 to May 26 | Sep 16 to Oct 08 | Spring |
| Radishes | — | — | Apr 07 to Apr 14 | May 17 to Jun 13 | Spring |
| Rosemary | Feb 10 to Feb 24 | May 19 to May 26 | — | Aug 27 to Sep 03 | Spring |
| Sage | Mar 09 to Mar 24 | May 12 to May 26 | — | Aug 02 to Sep 14 | Spring |
| Salsify | — | — | Apr 07 to Apr 21 | Jul 16 to Sep 18 | Spring |
| Spinach | Mar 24 to Apr 07 | Apr 14 to Apr 21 | Apr 07 to Apr 14 | May 17 to Jul 13 | Spring |
| Squash, Summer | Apr 14 to Apr 21 | May 12 to May 26 | May 19 to May 26 | Jul 03 to Jul 20 | Spring |
| Squash, Winter | Apr 14 to Apr 21 | May 12 to May 26 | May 19 to May 26 | Aug 07 to Sep 23 | Spring |
| Sweet Corn | — | — | May 19 to Jun 02 | Jul 28 to Aug 31 | Spring |
| Sweet Potatoes | — | — | May 19 to Jun 02 | Sep 16 to Nov 09 | Spring |
| Swiss Chard | Mar 24 to Apr 07 | Apr 21 to May 05 | Apr 14 to May 05 | Jun 13 to Aug 03 | Spring |
| Thyme | Feb 24 to Mar 09 | May 12 to May 19 | — | Aug 08 to Sep 01 | Spring |
| Tomatillos | Mar 24 to Apr 07 | May 19 to Jun 02 | — | Jul 08 to Sep 30 | Spring |
| Tomato | Mar 09 to Mar 24 | May 19 to May 26 | — | Jul 18 to Sep 03 | Spring |
| Turnips | — | — | Apr 07 to Apr 14 | May 22 to Jul 03 | Spring |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Arugula | Aug 16 to Sep 20 | — | — | Sep 25 to Oct 30 | Fall |
| Beans, Green | Jul 19 to Aug 02 | — | — | Sep 17 to Oct 31 | Fall |
| Beets | Jul 12 to Aug 09 | — | — | Sep 10 to Oct 28 | Fall |
| Bok Choy | Jul 26 to Aug 16 | — | — | Sep 09 to Sep 30 | Fall |
| Broccoli | Jul 05 to Jul 12 | Jul 26 to Aug 09 | — | Nov 23 to Dec 17 | Fall |
| Brussels Sprouts | Jun 14 to Jun 28 | — | — | Oct 22 to Nov 25 | Fall |
| Cabbage | Jul 05 to Jul 12 | Jul 26 to Aug 02 | — | Nov 23 to Dec 10 | Fall |
| Carrots | Jul 19 to Jul 26 | — | — | Sep 17 to Nov 03 | Fall |
| Cauliflower | Jun 28 to Jul 05 | Jul 12 to Jul 19 | — | Nov 09 to Nov 26 | Fall |
| Chives | Jul 12 to Aug 09 | — | — | Sep 17 to Nov 11 | Fall |
| Fennel | Jul 05 to Jul 19 | — | — | Sep 26 to Oct 17 | Fall |
| Garlic | Oct 18 to Nov 01 | — | — | Mar 17 to May 30 | Fall |
| Kale | Jul 26 to Aug 09 | — | — | Sep 24 to Nov 07 | Fall |
| Kohlrabi | Aug 02 to Aug 23 | — | — | Sep 24 to Oct 22 | Fall |
| Lettuce | Jul 26 to Aug 09 | — | — | Sep 14 to Nov 07 | Fall |
| Mustard Greens | Aug 02 to Aug 23 | — | — | Sep 11 to Oct 22 | Fall |
| Peas | Jul 26 to Aug 09 | — | — | Sep 24 to Jan 06 | Fall |
| Radishes | Aug 23 to Sep 06 | — | — | Oct 02 to Nov 05 | Fall |
| Spinach | Aug 16 to Sep 06 | — | — | Sep 25 to Dec 05 | Fall |
| Swiss Chard | Jul 26 to Aug 09 | — | — | Sep 24 to Nov 07 | Fall |
| Turnips | Aug 02 to Aug 16 | — | — | Sep 16 to Nov 04 | Fall |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Arugula | Mar 09 to Mar 24 | Apr 14 to Apr 28 | Apr 07 to Apr 14 | May 17 to May 24 | Spring |
| Bok Choy | Mar 24 to Apr 07 | May 19 to May 26 | May 19 to May 26 | Jul 03 to Jul 10 | Spring |
| Broccoli | Mar 09 to Mar 24 | Apr 21 to May 05 | Apr 07 to Apr 14 | Aug 05 to Aug 22 | Spring |
| Brussels Sprouts | Mar 24 to Apr 07 | Apr 21 to May 05 | Apr 07 to Apr 14 | Aug 15 to Sep 11 | Spring |
| Cabbage | Mar 09 to Mar 24 | Apr 21 to May 05 | Apr 07 to Apr 14 | Aug 05 to Aug 22 | Spring |
| Cauliflower | Mar 24 to Apr 07 | Apr 28 to May 12 | — | Aug 26 to Sep 19 | Spring |
| Celery | Feb 10 to Feb 24 | May 12 to May 26 | May 05 to May 19 | Sep 12 to Oct 06 | Spring |
| Collards | Mar 24 to Apr 07 | Apr 21 to May 05 | Apr 14 to Apr 21 | Jul 03 to Jul 20 | Spring |
| Kale | Mar 09 to Mar 24 | Apr 21 to May 05 | Apr 07 to Apr 14 | Jun 06 to Jul 13 | Spring |
| Kohlrabi | Mar 24 to Apr 07 | Apr 14 to Apr 21 | Apr 07 to Apr 14 | May 30 to Jun 13 | Spring |
| Radishes | — | — | Apr 07 to Apr 14 | May 17 to Jun 13 | Spring |
| Swiss Chard | Mar 24 to Apr 07 | Apr 21 to May 05 | Apr 14 to May 05 | Jun 13 to Aug 03 | Spring |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Arugula | Aug 16 to Sep 20 | — | — | Sep 25 to Oct 30 | Fall |
| Bok Choy | Jul 26 to Aug 16 | — | — | Sep 09 to Sep 30 | Fall |
| Broccoli | Jul 05 to Jul 12 | Jul 26 to Aug 09 | — | Nov 23 to Dec 17 | Fall |
| Brussels Sprouts | Jun 14 to Jun 28 | — | — | Oct 22 to Nov 25 | Fall |
| Cabbage | Jul 05 to Jul 12 | Jul 26 to Aug 02 | — | Nov 23 to Dec 10 | Fall |
| Kale | Jul 26 to Aug 09 | — | — | Sep 24 to Nov 07 | Fall |
| Kohlrabi | Aug 02 to Aug 23 | — | — | Sep 24 to Oct 22 | Fall |
| Radishes | Aug 23 to Sep 06 | — | — | Oct 02 to Nov 05 | Fall |
| Swiss Chard | Jul 26 to Aug 09 | — | — | Sep 24 to Nov 07 | Fall |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Cucumbers | Apr 14 to Apr 21 | May 12 to May 26 | May 19 to May 26 | Jul 18 to Aug 24 | Spring |
| Melons, Cantaloupe | Apr 14 to Apr 28 | May 05 to May 19 | May 12 to May 19 | Jul 31 to Sep 16 | Spring |
| Melons, Honeydew | Apr 14 to Apr 21 | May 19 to May 26 | May 19 to May 26 | Aug 12 to Sep 03 | Spring |
| Melons, Watermelon | Apr 14 to Apr 28 | May 19 to May 26 | May 12 to May 19 | Aug 10 to Sep 16 | Spring |
| Pumpkins | Apr 14 to Apr 28 | May 19 to May 26 | May 19 to May 26 | Sep 16 to Oct 08 | Spring |
| Squash, Summer | Apr 14 to Apr 21 | May 12 to May 26 | May 19 to May 26 | Jul 03 to Jul 20 | Spring |
| Squash, Winter | Apr 14 to Apr 21 | May 12 to May 26 | May 19 to May 26 | Aug 07 to Sep 23 | Spring |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Cauliflower | Jun 28 to Jul 05 | Jul 12 to Jul 19 | — | Nov 09 to Nov 26 | Fall |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Beans, Common | — | — | May 19 to May 26 | Jul 18 to Aug 24 | Spring |
| Beans, Green | — | — | May 12 to Jun 02 | Jul 11 to Aug 31 | Spring |
| Fava Beans | — | — | Apr 07 to Apr 14 | Jun 26 to Jul 13 | Spring |
| Peanuts | — | — | May 26 to Jun 09 | Sep 03 to Oct 17 | Spring |
| Peas | — | — | Apr 07 to Apr 14 | Jun 06 to Sep 11 | Spring |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Beans, Green | Jul 19 to Aug 02 | — | — | Sep 17 to Oct 31 | Fall |
| Peas | Jul 26 to Aug 09 | — | — | Sep 24 to Jan 06 | Fall |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Bell Peppers | Feb 24 to Mar 09 | May 19 to May 26 | — | Aug 12 to Sep 05 | Spring |
| Eggplant | Mar 09 to Mar 24 | May 19 to May 26 | — | Jul 28 to Sep 23 | Spring |
| Peppers, Jalapeno | Feb 24 to Mar 09 | May 19 to May 26 | — | Jul 18 to Aug 14 | Spring |
| Potatoes | — | — | Apr 07 to Apr 21 | Jul 06 to Aug 19 | Spring |
| Sweet Potatoes | — | — | May 19 to Jun 02 | Sep 16 to Nov 09 | Spring |
| Tomatillos | Mar 24 to Apr 07 | May 19 to Jun 02 | — | Jul 08 to Sep 30 | Spring |
| Tomato | Mar 09 to Mar 24 | May 19 to May 26 | — | Jul 18 to Sep 03 | Spring |
| Crop | Start Seeds Indoors | Transplant Outdoors | Start Seeds Outdoors | Estimated Harvest | Season |
| Beans, Green | Jul 19 to Aug 02 | — | — | Sep 17 to Oct 31 | Fall |
| Peas | Jul 26 to Aug 09 | — | — | Sep 24 to Jan 06 | Fall |