Harman US

Planting Calendar for ZIP 49660

Based on your local frost dates - last spring frost around May 14, first fall frost around Oct 12 - here is when to plant 79 common crops near ZIP 49660.

Last spring frost
May 14
First fall frost
Oct 12
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 2 May 21 (Transplant out) -
Peppers Mar 19 May 28 (Transplant out) -
Cucumbers Apr 23 May 21 (Transplant out) Aug 4
Zucchini Apr 23 May 21 (Transplant out) Aug 9
Summer Squash Apr 23 May 21 (Transplant out) Aug 7
Winter Squash Apr 23 May 21 (Transplant out) -
Pumpkins Apr 23 May 21 (Transplant out) -
Green Beans - May 14 (Direct sow) Aug 4
Sweet Corn - May 21 (Direct sow) -
Melons Apr 23 May 28 (Transplant out) -
Watermelon Apr 23 May 28 (Transplant out) -
Okra - May 28 (Direct sow) -
Eggplant Mar 19 May 28 (Transplant out) -
Lettuce Apr 16 Apr 16 (Transplant out) Aug 9
Spinach - Apr 2 (Direct sow) Aug 14
Kale Apr 2 Apr 23 (Transplant out) Aug 4
Peas - Apr 2 (Direct sow) Jul 30
Carrots - Apr 23 (Direct sow) Jul 20
Beets - Apr 16 (Direct sow) Aug 4
Radishes - Apr 16 (Direct sow) Aug 31
Broccoli Apr 2 Apr 30 (Transplant out) Jul 25
Cauliflower Apr 2 Apr 30 (Transplant out) Jul 20
Cabbage Apr 2 Apr 23 (Transplant out) Jul 20
Onions Mar 5 Apr 16 (Transplant out) -
Potatoes - Apr 30 (Direct sow) -
Swiss Chard Apr 16 Apr 30 (Transplant out) Aug 4
Sweet Potatoes - Jun 4 (Direct sow) -
Brussels Sprouts Apr 2 Apr 30 (Transplant out) Jun 20
Celery Mar 5 May 21 (Transplant out) -
Leeks Mar 5 Apr 30 (Transplant out) May 31
Turnips - Apr 30 (Direct sow) Aug 9
Rutabaga - May 14 (Direct sow) Jun 25
Parsnips - Apr 30 (Direct sow) May 31
Kohlrabi Apr 16 Apr 30 (Transplant out) Aug 4
Collard Greens Apr 2 Apr 30 (Transplant out) Jul 25
Mustard Greens - Apr 30 (Direct sow) Aug 14
Arugula - Apr 30 (Direct sow) Aug 19
Bok Choy Apr 16 Apr 30 (Transplant out) Aug 9
Green Onions - Apr 30 (Direct sow) Jul 30
Tomatillos Apr 2 May 21 (Transplant out) -
Fennel Apr 16 Apr 30 (Transplant out) Jul 10
Popcorn May 14 May 28 (Transplant out) -
Black-Eyed Peas May 14 May 28 (Transplant out) Jul 10
Lima Beans May 14 May 28 (Transplant out) -
Edamame May 14 May 28 (Transplant out) -
Peanuts May 14 May 28 (Transplant out) -
Globe Artichoke Mar 19 Apr 30 (Transplant out) Jun 30
Horseradish May 14 Apr 30 (Transplant out) -
Ground Cherries Apr 2 May 28 (Transplant out) -
Radicchio Apr 9 Apr 30 (Transplant out) Jul 20
Endive Apr 9 Apr 30 (Transplant out) Jun 30
Watercress Apr 23 Apr 30 (Transplant out) Jul 30
Sorrel Apr 2 Apr 23 (Transplant out) Jul 30
Sunchokes May 14 Apr 30 (Transplant out) -
Malabar Spinach Apr 2 May 28 (Transplant out) -
Amaranth Greens Apr 23 May 28 (Transplant out) Aug 14
Luffa Gourd Apr 2 May 28 (Transplant out) -
New Zealand Spinach Apr 16 May 28 (Transplant out) -
Fava Beans May 14 Apr 16 (Transplant out) Jul 5
Chayote Apr 16 May 28 (Transplant out) -
Corn Salad May 14 Apr 16 (Transplant out) Jul 30
Bitter Melon Apr 16 May 28 (Transplant out) -
Cardoon Apr 2 May 14 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 2 May 21 (Transplant out) -
Cilantro - Apr 30 (Direct sow) Aug 9
Parsley Mar 19 May 28 (Transplant out) Jul 15
Dill - May 21 (Direct sow) Jul 30
Lemon Balm Apr 2 May 14 (Transplant out) -
Borage May 14 May 14 (Transplant out) Aug 4
Chervil May 14 Apr 23 (Transplant out) Aug 4
Lemongrass Mar 19 May 28 (Transplant out) -
Summer Savory Apr 2 May 14 (Transplant out) -
Marjoram Apr 2 May 21 (Transplant out) -
Lovage Apr 2 May 14 (Transplant out) Jun 30
Anise Hyssop Mar 19 May 14 (Transplant out) -
Shiso Apr 2 May 21 (Transplant out) -
Stevia Mar 19 May 28 (Transplant out) -
Chamomile Apr 2 Apr 30 (Transplant out) Jul 25
Tarragon May 14 May 14 (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 Manistee 3Se, Mi, 4.4 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 49660 Local weather →