Harman US

Planting Calendar for ZIP 49680

Based on your local frost dates - last spring frost around May 24, first fall frost around Oct 4 - here is when to plant 79 common crops near ZIP 49680.

Last spring frost
May 24
First fall frost
Oct 4
Hardiness zone
5b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 12 May 31 (Transplant out) -
Peppers Mar 29 Jun 7 (Transplant out) -
Cucumbers May 3 May 31 (Transplant out) Jul 27
Zucchini May 3 May 31 (Transplant out) Aug 1
Summer Squash May 3 May 31 (Transplant out) Jul 30
Winter Squash May 3 May 31 (Transplant out) -
Pumpkins May 3 May 31 (Transplant out) -
Green Beans - May 24 (Direct sow) Jul 27
Sweet Corn - May 31 (Direct sow) -
Melons May 3 Jun 7 (Transplant out) -
Watermelon May 3 Jun 7 (Transplant out) -
Okra - Jun 7 (Direct sow) -
Eggplant Mar 29 Jun 7 (Transplant out) -
Lettuce Apr 26 Apr 26 (Transplant out) Aug 1
Spinach - Apr 12 (Direct sow) Aug 6
Kale Apr 12 May 3 (Transplant out) Jul 27
Peas - Apr 12 (Direct sow) Jul 22
Carrots - May 3 (Direct sow) Jul 12
Beets - Apr 26 (Direct sow) Jul 27
Radishes - Apr 26 (Direct sow) Aug 23
Broccoli Apr 12 May 10 (Transplant out) Jul 17
Cauliflower Apr 12 May 10 (Transplant out) Jul 12
Cabbage Apr 12 May 3 (Transplant out) Jul 12
Onions Mar 15 Apr 26 (Transplant out) -
Potatoes - May 10 (Direct sow) -
Swiss Chard Apr 26 May 10 (Transplant out) Jul 27
Sweet Potatoes - Jun 14 (Direct sow) -
Brussels Sprouts Apr 12 May 10 (Transplant out) Jun 12
Celery Mar 15 May 31 (Transplant out) -
Leeks Mar 15 May 10 (Transplant out) May 23
Turnips - May 10 (Direct sow) Aug 1
Rutabaga - May 24 (Direct sow) Jun 17
Parsnips - May 10 (Direct sow) May 23
Kohlrabi Apr 26 May 10 (Transplant out) Jul 27
Collard Greens Apr 12 May 10 (Transplant out) Jul 17
Mustard Greens - May 10 (Direct sow) Aug 6
Arugula - May 10 (Direct sow) Aug 11
Bok Choy Apr 26 May 10 (Transplant out) Aug 1
Green Onions - May 10 (Direct sow) Jul 22
Tomatillos Apr 12 May 31 (Transplant out) -
Fennel Apr 26 May 10 (Transplant out) Jul 2
Popcorn May 24 Jun 7 (Transplant out) -
Black-Eyed Peas May 24 Jun 7 (Transplant out) Jul 2
Lima Beans May 24 Jun 7 (Transplant out) -
Edamame May 24 Jun 7 (Transplant out) -
Peanuts May 24 Jun 7 (Transplant out) -
Globe Artichoke Mar 29 May 10 (Transplant out) Jun 22
Horseradish May 24 May 10 (Transplant out) -
Ground Cherries Apr 12 Jun 7 (Transplant out) -
Radicchio Apr 19 May 10 (Transplant out) Jul 12
Endive Apr 19 May 10 (Transplant out) Jun 22
Watercress May 3 May 10 (Transplant out) Jul 22
Sorrel Apr 12 May 3 (Transplant out) Jul 22
Sunchokes May 24 May 10 (Transplant out) -
Malabar Spinach Apr 12 Jun 7 (Transplant out) -
Amaranth Greens May 3 Jun 7 (Transplant out) Aug 6
Luffa Gourd Apr 12 Jun 7 (Transplant out) -
New Zealand Spinach Apr 26 Jun 7 (Transplant out) -
Fava Beans May 24 Apr 26 (Transplant out) Jun 27
Chayote Apr 26 Jun 7 (Transplant out) -
Corn Salad May 24 Apr 26 (Transplant out) Jul 22
Bitter Melon Apr 26 Jun 7 (Transplant out) -
Cardoon Apr 12 May 24 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 12 May 31 (Transplant out) -
Cilantro - May 10 (Direct sow) Aug 1
Parsley Mar 29 Jun 7 (Transplant out) Jul 7
Dill - May 31 (Direct sow) Jul 22
Lemon Balm Apr 12 May 24 (Transplant out) -
Borage May 24 May 24 (Transplant out) Jul 27
Chervil May 24 May 3 (Transplant out) Jul 27
Lemongrass Mar 29 Jun 7 (Transplant out) -
Summer Savory Apr 12 May 24 (Transplant out) -
Marjoram Apr 12 May 31 (Transplant out) -
Lovage Apr 12 May 24 (Transplant out) Jun 22
Anise Hyssop Mar 29 May 24 (Transplant out) -
Shiso Apr 12 May 31 (Transplant out) -
Stevia Mar 29 Jun 7 (Transplant out) -
Chamomile Apr 12 May 10 (Transplant out) Jul 17
Tarragon May 24 May 24 (Transplant out) -
How to read this calendar

Start seeds indoors is when to sow in trays inside so seedlings are ready to transplant. Plant outside is when to transplant seedlings or direct-sow seed, based on frost tolerance. Fall planting by is the latest date to start a fall crop and still harvest before the first fall frost. Tender crops wait until after the last spring frost; hardy crops can go out earlier.

Computed from NOAA 1991–2020 Climate Normals at S Boardman 2W, Mi, 4.2 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 49680 Local weather →