Harman US

Planting Calendar for ZIP 49630

Based on your local frost dates - last spring frost around May 22, first fall frost around Oct 9 - here is when to plant 79 common crops near ZIP 49630.

Last spring frost
May 22
First fall frost
Oct 9
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 10 May 29 (Transplant out) -
Peppers Mar 27 Jun 5 (Transplant out) -
Cucumbers May 1 May 29 (Transplant out) Aug 1
Zucchini May 1 May 29 (Transplant out) Aug 6
Summer Squash May 1 May 29 (Transplant out) Aug 4
Winter Squash May 1 May 29 (Transplant out) -
Pumpkins May 1 May 29 (Transplant out) -
Green Beans - May 22 (Direct sow) Aug 1
Sweet Corn - May 29 (Direct sow) -
Melons May 1 Jun 5 (Transplant out) -
Watermelon May 1 Jun 5 (Transplant out) -
Okra - Jun 5 (Direct sow) -
Eggplant Mar 27 Jun 5 (Transplant out) -
Lettuce Apr 24 Apr 24 (Transplant out) Aug 6
Spinach - Apr 10 (Direct sow) Aug 11
Kale Apr 10 May 1 (Transplant out) Aug 1
Peas - Apr 10 (Direct sow) Jul 27
Carrots - May 1 (Direct sow) Jul 17
Beets - Apr 24 (Direct sow) Aug 1
Radishes - Apr 24 (Direct sow) Aug 28
Broccoli Apr 10 May 8 (Transplant out) Jul 22
Cauliflower Apr 10 May 8 (Transplant out) Jul 17
Cabbage Apr 10 May 1 (Transplant out) Jul 17
Onions Mar 13 Apr 24 (Transplant out) -
Potatoes - May 8 (Direct sow) -
Swiss Chard Apr 24 May 8 (Transplant out) Aug 1
Sweet Potatoes - Jun 12 (Direct sow) -
Brussels Sprouts Apr 10 May 8 (Transplant out) Jun 17
Celery Mar 13 May 29 (Transplant out) -
Leeks Mar 13 May 8 (Transplant out) May 28
Turnips - May 8 (Direct sow) Aug 6
Rutabaga - May 22 (Direct sow) Jun 22
Parsnips - May 8 (Direct sow) May 28
Kohlrabi Apr 24 May 8 (Transplant out) Aug 1
Collard Greens Apr 10 May 8 (Transplant out) Jul 22
Mustard Greens - May 8 (Direct sow) Aug 11
Arugula - May 8 (Direct sow) Aug 16
Bok Choy Apr 24 May 8 (Transplant out) Aug 6
Green Onions - May 8 (Direct sow) Jul 27
Tomatillos Apr 10 May 29 (Transplant out) -
Fennel Apr 24 May 8 (Transplant out) Jul 7
Popcorn May 22 Jun 5 (Transplant out) -
Black-Eyed Peas May 22 Jun 5 (Transplant out) Jul 7
Lima Beans May 22 Jun 5 (Transplant out) -
Edamame May 22 Jun 5 (Transplant out) -
Peanuts May 22 Jun 5 (Transplant out) -
Globe Artichoke Mar 27 May 8 (Transplant out) Jun 27
Horseradish May 22 May 8 (Transplant out) -
Ground Cherries Apr 10 Jun 5 (Transplant out) -
Radicchio Apr 17 May 8 (Transplant out) Jul 17
Endive Apr 17 May 8 (Transplant out) Jun 27
Watercress May 1 May 8 (Transplant out) Jul 27
Sorrel Apr 10 May 1 (Transplant out) Jul 27
Sunchokes May 22 May 8 (Transplant out) -
Malabar Spinach Apr 10 Jun 5 (Transplant out) -
Amaranth Greens May 1 Jun 5 (Transplant out) Aug 11
Luffa Gourd Apr 10 Jun 5 (Transplant out) -
New Zealand Spinach Apr 24 Jun 5 (Transplant out) -
Fava Beans May 22 Apr 24 (Transplant out) Jul 2
Chayote Apr 24 Jun 5 (Transplant out) -
Corn Salad May 22 Apr 24 (Transplant out) Jul 27
Bitter Melon Apr 24 Jun 5 (Transplant out) -
Cardoon Apr 10 May 22 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 10 May 29 (Transplant out) -
Cilantro - May 8 (Direct sow) Aug 6
Parsley Mar 27 Jun 5 (Transplant out) Jul 12
Dill - May 29 (Direct sow) Jul 27
Lemon Balm Apr 10 May 22 (Transplant out) -
Borage May 22 May 22 (Transplant out) Aug 1
Chervil May 22 May 1 (Transplant out) Aug 1
Lemongrass Mar 27 Jun 5 (Transplant out) -
Summer Savory Apr 10 May 22 (Transplant out) -
Marjoram Apr 10 May 29 (Transplant out) -
Lovage Apr 10 May 22 (Transplant out) Jun 27
Anise Hyssop Mar 27 May 22 (Transplant out) -
Shiso Apr 10 May 29 (Transplant out) -
Stevia Mar 27 Jun 5 (Transplant out) -
Chamomile Apr 10 May 8 (Transplant out) Jul 22
Tarragon May 22 May 22 (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 Maple City 1E, Mi, 10.4 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 49630 Local weather →