Harman US

Planting Calendar for ZIP 48743

Based on your local frost dates - last spring frost around May 16, first fall frost around Oct 5 - here is when to plant 79 common crops near ZIP 48743.

Last spring frost
May 16
First fall frost
Oct 5
Hardiness zone
5a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 4 May 23 (Transplant out) -
Peppers Mar 21 May 30 (Transplant out) -
Cucumbers Apr 25 May 23 (Transplant out) Jul 28
Zucchini Apr 25 May 23 (Transplant out) Aug 2
Summer Squash Apr 25 May 23 (Transplant out) Jul 31
Winter Squash Apr 25 May 23 (Transplant out) -
Pumpkins Apr 25 May 23 (Transplant out) -
Green Beans - May 16 (Direct sow) Jul 28
Sweet Corn - May 23 (Direct sow) -
Melons Apr 25 May 30 (Transplant out) -
Watermelon Apr 25 May 30 (Transplant out) -
Okra - May 30 (Direct sow) -
Eggplant Mar 21 May 30 (Transplant out) -
Lettuce Apr 18 Apr 18 (Transplant out) Aug 2
Spinach - Apr 4 (Direct sow) Aug 7
Kale Apr 4 Apr 25 (Transplant out) Jul 28
Peas - Apr 4 (Direct sow) Jul 23
Carrots - Apr 25 (Direct sow) Jul 13
Beets - Apr 18 (Direct sow) Jul 28
Radishes - Apr 18 (Direct sow) Aug 24
Broccoli Apr 4 May 2 (Transplant out) Jul 18
Cauliflower Apr 4 May 2 (Transplant out) Jul 13
Cabbage Apr 4 Apr 25 (Transplant out) Jul 13
Onions Mar 7 Apr 18 (Transplant out) -
Potatoes - May 2 (Direct sow) -
Swiss Chard Apr 18 May 2 (Transplant out) Jul 28
Sweet Potatoes - Jun 6 (Direct sow) -
Brussels Sprouts Apr 4 May 2 (Transplant out) Jun 13
Celery Mar 7 May 23 (Transplant out) -
Leeks Mar 7 May 2 (Transplant out) May 24
Turnips - May 2 (Direct sow) Aug 2
Rutabaga - May 16 (Direct sow) Jun 18
Parsnips - May 2 (Direct sow) May 24
Kohlrabi Apr 18 May 2 (Transplant out) Jul 28
Collard Greens Apr 4 May 2 (Transplant out) Jul 18
Mustard Greens - May 2 (Direct sow) Aug 7
Arugula - May 2 (Direct sow) Aug 12
Bok Choy Apr 18 May 2 (Transplant out) Aug 2
Green Onions - May 2 (Direct sow) Jul 23
Tomatillos Apr 4 May 23 (Transplant out) -
Fennel Apr 18 May 2 (Transplant out) Jul 3
Popcorn May 16 May 30 (Transplant out) -
Black-Eyed Peas May 16 May 30 (Transplant out) Jul 3
Lima Beans May 16 May 30 (Transplant out) -
Edamame May 16 May 30 (Transplant out) -
Peanuts May 16 May 30 (Transplant out) -
Globe Artichoke Mar 21 May 2 (Transplant out) Jun 23
Horseradish May 16 May 2 (Transplant out) -
Ground Cherries Apr 4 May 30 (Transplant out) -
Radicchio Apr 11 May 2 (Transplant out) Jul 13
Endive Apr 11 May 2 (Transplant out) Jun 23
Watercress Apr 25 May 2 (Transplant out) Jul 23
Sorrel Apr 4 Apr 25 (Transplant out) Jul 23
Sunchokes May 16 May 2 (Transplant out) -
Malabar Spinach Apr 4 May 30 (Transplant out) -
Amaranth Greens Apr 25 May 30 (Transplant out) Aug 7
Luffa Gourd Apr 4 May 30 (Transplant out) -
New Zealand Spinach Apr 18 May 30 (Transplant out) -
Fava Beans May 16 Apr 18 (Transplant out) Jun 28
Chayote Apr 18 May 30 (Transplant out) -
Corn Salad May 16 Apr 18 (Transplant out) Jul 23
Bitter Melon Apr 18 May 30 (Transplant out) -
Cardoon Apr 4 May 16 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 4 May 23 (Transplant out) -
Cilantro - May 2 (Direct sow) Aug 2
Parsley Mar 21 May 30 (Transplant out) Jul 8
Dill - May 23 (Direct sow) Jul 23
Lemon Balm Apr 4 May 16 (Transplant out) -
Borage May 16 May 16 (Transplant out) Jul 28
Chervil May 16 Apr 25 (Transplant out) Jul 28
Lemongrass Mar 21 May 30 (Transplant out) -
Summer Savory Apr 4 May 16 (Transplant out) -
Marjoram Apr 4 May 23 (Transplant out) -
Lovage Apr 4 May 16 (Transplant out) Jun 23
Anise Hyssop Mar 21 May 16 (Transplant out) -
Shiso Apr 4 May 23 (Transplant out) -
Stevia Mar 21 May 30 (Transplant out) -
Chamomile Apr 4 May 2 (Transplant out) Jul 18
Tarragon May 16 May 16 (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 Hale Loud Dam, Mi, 7.1 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 48743 Local weather →