Harman US

Planting Calendar for ZIP 49446

Based on your local frost dates - last spring frost around May 19, first fall frost around Oct 4 - here is when to plant 79 common crops near ZIP 49446.

Last spring frost
May 19
First fall frost
Oct 4
Hardiness zone
6a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 7 May 26 (Transplant out) -
Peppers Mar 24 Jun 2 (Transplant out) -
Cucumbers Apr 28 May 26 (Transplant out) Jul 27
Zucchini Apr 28 May 26 (Transplant out) Aug 1
Summer Squash Apr 28 May 26 (Transplant out) Jul 30
Winter Squash Apr 28 May 26 (Transplant out) -
Pumpkins Apr 28 May 26 (Transplant out) -
Green Beans - May 19 (Direct sow) Jul 27
Sweet Corn - May 26 (Direct sow) -
Melons Apr 28 Jun 2 (Transplant out) -
Watermelon Apr 28 Jun 2 (Transplant out) -
Okra - Jun 2 (Direct sow) -
Eggplant Mar 24 Jun 2 (Transplant out) -
Lettuce Apr 21 Apr 21 (Transplant out) Aug 1
Spinach - Apr 7 (Direct sow) Aug 6
Kale Apr 7 Apr 28 (Transplant out) Jul 27
Peas - Apr 7 (Direct sow) Jul 22
Carrots - Apr 28 (Direct sow) Jul 12
Beets - Apr 21 (Direct sow) Jul 27
Radishes - Apr 21 (Direct sow) Aug 23
Broccoli Apr 7 May 5 (Transplant out) Jul 17
Cauliflower Apr 7 May 5 (Transplant out) Jul 12
Cabbage Apr 7 Apr 28 (Transplant out) Jul 12
Onions Mar 10 Apr 21 (Transplant out) -
Potatoes - May 5 (Direct sow) -
Swiss Chard Apr 21 May 5 (Transplant out) Jul 27
Sweet Potatoes - Jun 9 (Direct sow) -
Brussels Sprouts Apr 7 May 5 (Transplant out) Jun 12
Celery Mar 10 May 26 (Transplant out) -
Leeks Mar 10 May 5 (Transplant out) May 23
Turnips - May 5 (Direct sow) Aug 1
Rutabaga - May 19 (Direct sow) Jun 17
Parsnips - May 5 (Direct sow) May 23
Kohlrabi Apr 21 May 5 (Transplant out) Jul 27
Collard Greens Apr 7 May 5 (Transplant out) Jul 17
Mustard Greens - May 5 (Direct sow) Aug 6
Arugula - May 5 (Direct sow) Aug 11
Bok Choy Apr 21 May 5 (Transplant out) Aug 1
Green Onions - May 5 (Direct sow) Jul 22
Tomatillos Apr 7 May 26 (Transplant out) -
Fennel Apr 21 May 5 (Transplant out) Jul 2
Popcorn May 19 Jun 2 (Transplant out) -
Black-Eyed Peas May 19 Jun 2 (Transplant out) Jul 2
Lima Beans May 19 Jun 2 (Transplant out) -
Edamame May 19 Jun 2 (Transplant out) -
Peanuts May 19 Jun 2 (Transplant out) -
Globe Artichoke Mar 24 May 5 (Transplant out) Jun 22
Horseradish May 19 May 5 (Transplant out) -
Ground Cherries Apr 7 Jun 2 (Transplant out) -
Radicchio Apr 14 May 5 (Transplant out) Jul 12
Endive Apr 14 May 5 (Transplant out) Jun 22
Watercress Apr 28 May 5 (Transplant out) Jul 22
Sorrel Apr 7 Apr 28 (Transplant out) Jul 22
Sunchokes May 19 May 5 (Transplant out) -
Malabar Spinach Apr 7 Jun 2 (Transplant out) -
Amaranth Greens Apr 28 Jun 2 (Transplant out) Aug 6
Luffa Gourd Apr 7 Jun 2 (Transplant out) -
New Zealand Spinach Apr 21 Jun 2 (Transplant out) -
Fava Beans May 19 Apr 21 (Transplant out) Jun 27
Chayote Apr 21 Jun 2 (Transplant out) -
Corn Salad May 19 Apr 21 (Transplant out) Jul 22
Bitter Melon Apr 21 Jun 2 (Transplant out) -
Cardoon Apr 7 May 19 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 7 May 26 (Transplant out) -
Cilantro - May 5 (Direct sow) Aug 1
Parsley Mar 24 Jun 2 (Transplant out) Jul 7
Dill - May 26 (Direct sow) Jul 22
Lemon Balm Apr 7 May 19 (Transplant out) -
Borage May 19 May 19 (Transplant out) Jul 27
Chervil May 19 Apr 28 (Transplant out) Jul 27
Lemongrass Mar 24 Jun 2 (Transplant out) -
Summer Savory Apr 7 May 19 (Transplant out) -
Marjoram Apr 7 May 26 (Transplant out) -
Lovage Apr 7 May 19 (Transplant out) Jun 22
Anise Hyssop Mar 24 May 19 (Transplant out) -
Shiso Apr 7 May 26 (Transplant out) -
Stevia Mar 24 Jun 2 (Transplant out) -
Chamomile Apr 7 May 5 (Transplant out) Jul 17
Tarragon May 19 May 19 (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 Montague 4 Nw, Mi, 5.8 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 49446 Local weather →