USDA Hardiness Zone 6A • Midwest • 178 Day Growing Season
| Plant | Start Seeds Indoors | Transplant Outdoors | Direct Sow | First Harvest |
|---|---|---|---|---|
| Acorn Squash | Early to late April | Early May through early June | Late April through early July ★ | Late July through mid October |
| Ageratum | Early to late March | Early May through early June ★ | — | Early July through late August |
| Anaheim Pepper | Early to late March ★ | Early May through early June | — | Mid July through early September |
| Arugula | Early to late March | Early April through mid May | Late March through late August | Early May through late October |
| Asparagus | — | Mid to late April ★ | — | Mid April through late October |
| Banana Peppers | Early to late March ★ | Early May through early June | — | Mid July through late August |
| Basil | Mid March through early April | Early May through mid June | Early May through early September | Early June through mid October |
| Bay Laurel | Early to late February | Early to mid May ★ | — | Early May through late October |
| Beefsteak Tomatoes | Mid March through early April ★ | Early May through early June | — | Late July through mid September |
| Beet | — | Late March through mid April | Early April through early August ★ | Late May through late October |
| Bell Peppers | Early to late March ★ | Early May through early June | — | Mid July through late August |
| Better Boy Tomato | Mid March through early April ★ | Early May through early June | — | Mid July through early September |
| Black-Eyed Susan | Early February through early March | Mid April through mid May ★ | Mid April through mid July | Early July through late October |
| Blackberry | — | Mid April through mid May ★ | — | Mid June through early August |
| Blueberry | — | Mid April through mid May ★ | — | Mid July through late August |
| Bok Choy | Mid March through early April | Mid April through early June | Early April through mid August | Late May through late October |
| Borage | — | Early April through early May | Mid April through early August ★ | Mid June through late October |
| Brandywine Tomatoes | Mid March through early April ★ | Early to late May | — | Early August through mid September |
| Broccoli | Mid February through early March ★ | Early April through early May | — | Early June through late July |
| Brussels Sprouts | Early to late March ★ | Mid April through mid May | — | Mid July through late August |
| Butternut Squash | Early to late April | Early to late May | Late April through late June ★ | Early August through mid October |
| Cabbage | Mid February through early March ★ | Early April through early May | — | Mid June through early August |
| Calendula | Mid February through early March | Early April through mid May | Early April through mid August | Late May through late October |
| Cantaloupe | Early to late April | Early May through early June | Early May through mid July ★ | Late July through mid October |
| Carrot | — | Early April through early May | Early April through late July ★ | Mid June through late October |
| Cauliflower | Mid February through early March ★ | Early April through early May | — | Mid June through early August |
| Cayenne Peppers | Early to late March ★ | Early May through early June | — | Mid July through late August |
| Celebrity Tomato | Mid March through early April ★ | Early May through early June | — | Mid July through late August |
| Celery | Early to late February ★ | Mid April through mid May | — | Mid July through early September |
| Chamomile | Mid February through early March | Early April through early May | Early April through early August | Early June through late October |
| Cherry Tomatoes | Mid March through early April ★ | Early May through early June | — | Early July through late August |
| Chives | Early to late February | Early April through early May | Late March through mid July | Mid June through late October |
| Chrysanthemum | Mid February through early March | Mid April through mid May ★ | — | Late June through mid August |
| Cilantro | Mid March through early April | Mid April through early June | Early April through mid August | Late May through late October |
| Collard Greens | Mid March through early April | Mid April through mid May | Early April through mid July | Mid June through late October |
| Corn | — | Early May through early June | Late April through mid July ★ | Mid July through mid October |
| Cosmos | Late March through mid April | Early May through mid June | Mid April through mid August ★ | Early June through mid October |
| Cubanelle Pepper | Early to late March ★ | Early May through early June | — | Mid July through late August |
| Cucumber | Early to late April | Early May through early June | Late April through early August ★ | Late June through mid October |
| Dill | Late March through mid April | Late April through early June | Mid April through late August | Late May through late October |
| Early Girl Tomato | Mid March through early April ★ | Early May through mid June | — | Late June through late August |
| Echinacea | Mid February through early March | Mid April through mid May ★ | Mid April through early July | Mid July through late October |
| Eggplant | Early to late March ★ | Mid May through early June | — | Mid July through early September |
| Fennel | — | Mid April through mid May | Mid April through late July ★ | Late June through late October |
| Feverfew | Early February through early March | Mid April through mid May | Mid April through late July | Late June through late October |
| French Marigold | Mid March through early April | Early May through mid June | Mid April through mid August | Early June through mid October |
| Garlic | — | Mid July through early August | — | Mid March through late April |
| Geranium | Early to late February | Early May through early June ★ | — | Mid July through late August |
| Ghost Pepper | Early February through early March ★ | Mid May through early June | — | Early September through mid October |
| Grape Tomatoes | Mid March through early April ★ | Early May through early June | — | Early July through late August |
| Green Beans | — | Late April through late May | Late April through early August ★ | Late June through mid October |
| Green Onions | — | Late March through mid April | Late March through early August ★ | Late May through late October |
| Green Zebra Tomato | Mid March through early April ★ | Early May through early June | — | Mid July through early September |
| Habanero Peppers | Late February through mid March ★ | Mid May through early June | — | Early August through mid September |
| Heirloom Tomatoes | Mid March through early April ★ | Early May through early June | — | Late July through early September |
| Iceberg Lettuce | Early to late March | Early April through early May | Late March through late July | Early June through late October |
| Jalapeño Peppers | Early to late March ★ | Early May through early June | — | Mid July through early September |
| Kale | Early to late March | Early April through early May | Late March through early August | Mid May through late October |
| Lavender | Mid February through early March | Early to late May ★ | — | Early August through mid September |
| Lemon Balm | Early to late March | Mid April through mid May | Mid April through late July | Late June through late October |
| Lettuce | Early to late March | Early April through mid May | Late March through mid August | Early May through late October |
| Lobelia | Mid February through early March | Early May through early June ★ | — | Early July through late August |
| Mint | Mid February through early March | Mid April through mid May ★ | — | Mid June through early August |
| Mustard Greens | Early to late March | Early April through mid May | Late March through mid August | Early May through late October |
| Nasturtium | Late March through mid April | Late April through late May | Late April through early August ★ | Late June through mid October |
| Onion | Mid January through early February | Early to late April | Late March through late June | Early July through late October |
| Oregano | Mid February through early March | Mid April through early June ★ | Mid April through mid August | Early June through late October |
| Parsley | Early to late February | Early April through early May | Early April through late July | Mid June through late October |
| Peas | — | Late March through mid April | Early March through early August ★ | Early May through late October |
| Pepper | Early to late March ★ | Early May through early June | — | Early July through late August |
| Pepperoncini | Early to late March ★ | Early May through early June | — | Mid July through early September |
| Petunia | Mid February through early March | Early May through early June ★ | — | Early July through late August |
| Poblano Peppers | Early to late March ★ | Early May through early June | — | Late July through early September |
| Potato | — | Early to late April | Early April through early July ★ | Early July through late October |
| Pumpkin | Early to late April | Early to late May | Late April through late June ★ | Early August through mid October |
| Radish | — | Late March through early May | Late March through early September ★ | Mid April through late October |
| Raspberry | — | Mid April through mid May ★ | — | Mid June through early August |
| Roma Tomatoes | Mid March through early April ★ | Early May through early June | — | Mid July through early September |
| Romaine Lettuce | Early to late March | Early April through early May | Late March through late July | Late May through late October |
| Rosemary | Early to late February | Early to late May ★ | — | Early August through mid September |
| Sage | Early to late March | Mid April through mid May ★ | Mid April through mid July | Early July through late October |
| San Marzano Tomatoes | Mid March through early April ★ | Early May through early June | — | Late July through early September |
| Serrano Peppers | Early to late March ★ | Early May through early June | — | Late July through early September |
| Shishito Pepper | Early to late March ★ | Early May through early June | — | Early July through late August |
| Snap Peas | — | Late March through mid April | Early March through early August ★ | Early May through late October |
| Snow Peas | — | Late March through mid April | Early March through early August ★ | Early May through late October |
| Spaghetti Squash | Early to late April | Early to late May | Late April through late June ★ | Late July through mid October |
| Spinach | Mid February through early March | Late March through early May | Early March through late August | Mid April through late October |
| Squash | Early to late April | Early May through early June | Late April through early July ★ | Late July through mid October |
| Strawberry | — | Early to late April ★ | — | Early July through mid August |
| Sun Gold Tomato | Mid March through early April ★ | Early May through early June | — | Late June through mid August |
| Sunflower | Late March through mid April | Late April through late May | Mid April through mid July ★ | Early July through mid October |
| Sweet Alyssum | Mid February through early March | Early April through mid May | Early April through mid August | Late May through late October |
| Sweet Peppers | Early to late March ★ | Early May through early June | — | Early July through late August |
| Sweet Potato | Early to late March | Mid May through early June ★ | — | Mid August through late September |
| Swiss Chard | Mid March through early April | Mid April through mid May | Early April through early August | Late May through late October |
| Tansy | Mid February through early March | Early April through early May | Early April through mid July | Mid June through late October |
| Thai Chili | Early to late March ★ | Early May through early June | — | Late July through early September |
| Thyme | Mid February through early March | Mid April through mid May ★ | Mid April through late July | Late June through late October |
| Tomato | Mid March through early April ★ | Early May through early June | — | Mid July through late August |
| Watermelon | Early to late April | Early May through early June | Early May through early July ★ | Late July through mid October |
| Yarrow | Early to late February | Early April through early May ★ | Mid April through late July | Late June through late October |
| Yellow Squash | Early to late April | Early May through mid June | Late April through mid August ★ | Mid June through mid October |
| Zinnia | Late March through mid April | Early May through early June | Late April through early August | Late June through mid October |
| Zucchini | Early to late April | Early May through mid June | Late April through mid August ★ | Mid June through mid October |