Harman US

Planting Calendar for ZIP 48381

Based on your local frost dates - last spring frost around May 6, first fall frost around Oct 12 - here is when to plant 79 common crops near ZIP 48381.

Last spring frost
May 6
First fall frost
Oct 12
Hardiness zone
6a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 25 May 13 (Transplant out) -
Peppers Mar 11 May 20 (Transplant out) -
Cucumbers Apr 15 May 13 (Transplant out) Aug 4
Zucchini Apr 15 May 13 (Transplant out) Aug 9
Summer Squash Apr 15 May 13 (Transplant out) Aug 7
Winter Squash Apr 15 May 13 (Transplant out) -
Pumpkins Apr 15 May 13 (Transplant out) -
Green Beans - May 6 (Direct sow) Aug 4
Sweet Corn - May 13 (Direct sow) -
Melons Apr 15 May 20 (Transplant out) -
Watermelon Apr 15 May 20 (Transplant out) -
Okra - May 20 (Direct sow) -
Eggplant Mar 11 May 20 (Transplant out) -
Lettuce Apr 8 Apr 8 (Transplant out) Aug 9
Spinach - Mar 25 (Direct sow) Aug 14
Kale Mar 25 Apr 15 (Transplant out) Aug 4
Peas - Mar 25 (Direct sow) Jul 30
Carrots - Apr 15 (Direct sow) Jul 20
Beets - Apr 8 (Direct sow) Aug 4
Radishes - Apr 8 (Direct sow) Aug 31
Broccoli Mar 25 Apr 22 (Transplant out) Jul 25
Cauliflower Mar 25 Apr 22 (Transplant out) Jul 20
Cabbage Mar 25 Apr 15 (Transplant out) Jul 20
Onions Feb 25 Apr 8 (Transplant out) -
Potatoes - Apr 22 (Direct sow) -
Swiss Chard Apr 8 Apr 22 (Transplant out) Aug 4
Sweet Potatoes - May 27 (Direct sow) -
Brussels Sprouts Mar 25 Apr 22 (Transplant out) Jun 20
Celery Feb 25 May 13 (Transplant out) -
Leeks Feb 25 Apr 22 (Transplant out) May 31
Turnips - Apr 22 (Direct sow) Aug 9
Rutabaga - May 6 (Direct sow) Jun 25
Parsnips - Apr 22 (Direct sow) May 31
Kohlrabi Apr 8 Apr 22 (Transplant out) Aug 4
Collard Greens Mar 25 Apr 22 (Transplant out) Jul 25
Mustard Greens - Apr 22 (Direct sow) Aug 14
Arugula - Apr 22 (Direct sow) Aug 19
Bok Choy Apr 8 Apr 22 (Transplant out) Aug 9
Green Onions - Apr 22 (Direct sow) Jul 30
Tomatillos Mar 25 May 13 (Transplant out) -
Fennel Apr 8 Apr 22 (Transplant out) Jul 10
Popcorn May 6 May 20 (Transplant out) -
Black-Eyed Peas May 6 May 20 (Transplant out) Jul 10
Lima Beans May 6 May 20 (Transplant out) -
Edamame May 6 May 20 (Transplant out) -
Peanuts May 6 May 20 (Transplant out) -
Globe Artichoke Mar 11 Apr 22 (Transplant out) Jun 30
Horseradish May 6 Apr 22 (Transplant out) -
Ground Cherries Mar 25 May 20 (Transplant out) -
Radicchio Apr 1 Apr 22 (Transplant out) Jul 20
Endive Apr 1 Apr 22 (Transplant out) Jun 30
Watercress Apr 15 Apr 22 (Transplant out) Jul 30
Sorrel Mar 25 Apr 15 (Transplant out) Jul 30
Sunchokes May 6 Apr 22 (Transplant out) -
Malabar Spinach Mar 25 May 20 (Transplant out) -
Amaranth Greens Apr 15 May 20 (Transplant out) Aug 14
Luffa Gourd Mar 25 May 20 (Transplant out) -
New Zealand Spinach Apr 8 May 20 (Transplant out) -
Fava Beans May 6 Apr 8 (Transplant out) Jul 5
Chayote Apr 8 May 20 (Transplant out) -
Corn Salad May 6 Apr 8 (Transplant out) Jul 30
Bitter Melon Apr 8 May 20 (Transplant out) -
Cardoon Mar 25 May 6 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 25 May 13 (Transplant out) -
Cilantro - Apr 22 (Direct sow) Aug 9
Parsley Mar 11 May 20 (Transplant out) Jul 15
Dill - May 13 (Direct sow) Jul 30
Lemon Balm Mar 25 May 6 (Transplant out) -
Borage May 6 May 6 (Transplant out) Aug 4
Chervil May 6 Apr 15 (Transplant out) Aug 4
Lemongrass Mar 11 May 20 (Transplant out) -
Summer Savory Mar 25 May 6 (Transplant out) -
Marjoram Mar 25 May 13 (Transplant out) -
Lovage Mar 25 May 6 (Transplant out) Jun 30
Anise Hyssop Mar 11 May 6 (Transplant out) -
Shiso Mar 25 May 13 (Transplant out) -
Stevia Mar 11 May 20 (Transplant out) -
Chamomile Mar 25 Apr 22 (Transplant out) Jul 25
Tarragon May 6 May 6 (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 Milford Gm Proving Ground, Mi, 4.9 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 48381 Local weather →