Harman US

Planting Calendar for ZIP 58277

Based on your local frost dates - last spring frost around May 17, first fall frost around Sep 23 - here is when to plant 79 common crops near ZIP 58277.

Last spring frost
May 17
First fall frost
Sep 23
Hardiness zone
4a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 5 May 24 (Transplant out) -
Peppers Mar 22 May 31 (Transplant out) -
Cucumbers Apr 26 May 24 (Transplant out) Jul 16
Zucchini Apr 26 May 24 (Transplant out) Jul 21
Summer Squash Apr 26 May 24 (Transplant out) Jul 19
Winter Squash Apr 26 May 24 (Transplant out) -
Pumpkins Apr 26 May 24 (Transplant out) -
Green Beans - May 17 (Direct sow) Jul 16
Sweet Corn - May 24 (Direct sow) -
Melons Apr 26 May 31 (Transplant out) -
Watermelon Apr 26 May 31 (Transplant out) -
Okra - May 31 (Direct sow) -
Eggplant Mar 22 May 31 (Transplant out) -
Lettuce Apr 19 Apr 19 (Transplant out) Jul 21
Spinach - Apr 5 (Direct sow) Jul 26
Kale Apr 5 Apr 26 (Transplant out) Jul 16
Peas - Apr 5 (Direct sow) Jul 11
Carrots - Apr 26 (Direct sow) Jul 1
Beets - Apr 19 (Direct sow) Jul 16
Radishes - Apr 19 (Direct sow) Aug 12
Broccoli Apr 5 May 3 (Transplant out) Jul 6
Cauliflower Apr 5 May 3 (Transplant out) Jul 1
Cabbage Apr 5 Apr 26 (Transplant out) Jul 1
Onions Mar 8 Apr 19 (Transplant out) -
Potatoes - May 3 (Direct sow) -
Swiss Chard Apr 19 May 3 (Transplant out) Jul 16
Sweet Potatoes - Jun 7 (Direct sow) -
Brussels Sprouts Apr 5 May 3 (Transplant out) Jun 1
Celery Mar 8 May 24 (Transplant out) -
Leeks Mar 8 May 3 (Transplant out) May 12
Turnips - May 3 (Direct sow) Jul 21
Rutabaga - May 17 (Direct sow) Jun 6
Parsnips - May 3 (Direct sow) May 12
Kohlrabi Apr 19 May 3 (Transplant out) Jul 16
Collard Greens Apr 5 May 3 (Transplant out) Jul 6
Mustard Greens - May 3 (Direct sow) Jul 26
Arugula - May 3 (Direct sow) Jul 31
Bok Choy Apr 19 May 3 (Transplant out) Jul 21
Green Onions - May 3 (Direct sow) Jul 11
Tomatillos Apr 5 May 24 (Transplant out) -
Fennel Apr 19 May 3 (Transplant out) Jun 21
Popcorn May 17 May 31 (Transplant out) -
Black-Eyed Peas May 17 May 31 (Transplant out) Jun 21
Lima Beans May 17 May 31 (Transplant out) -
Edamame May 17 May 31 (Transplant out) -
Peanuts May 17 May 31 (Transplant out) -
Globe Artichoke Mar 22 May 3 (Transplant out) Jun 11
Horseradish May 17 May 3 (Transplant out) -
Ground Cherries Apr 5 May 31 (Transplant out) -
Radicchio Apr 12 May 3 (Transplant out) Jul 1
Endive Apr 12 May 3 (Transplant out) Jun 11
Watercress Apr 26 May 3 (Transplant out) Jul 11
Sorrel Apr 5 Apr 26 (Transplant out) Jul 11
Sunchokes May 17 May 3 (Transplant out) -
Malabar Spinach Apr 5 May 31 (Transplant out) -
Amaranth Greens Apr 26 May 31 (Transplant out) Jul 26
Luffa Gourd Apr 5 May 31 (Transplant out) -
New Zealand Spinach Apr 19 May 31 (Transplant out) -
Fava Beans May 17 Apr 19 (Transplant out) Jun 16
Chayote Apr 19 May 31 (Transplant out) -
Corn Salad May 17 Apr 19 (Transplant out) Jul 11
Bitter Melon Apr 19 May 31 (Transplant out) -
Cardoon Apr 5 May 17 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 5 May 24 (Transplant out) -
Cilantro - May 3 (Direct sow) Jul 21
Parsley Mar 22 May 31 (Transplant out) Jun 26
Dill - May 24 (Direct sow) Jul 11
Lemon Balm Apr 5 May 17 (Transplant out) -
Borage May 17 May 17 (Transplant out) Jul 16
Chervil May 17 Apr 26 (Transplant out) Jul 16
Lemongrass Mar 22 May 31 (Transplant out) -
Summer Savory Apr 5 May 17 (Transplant out) -
Marjoram Apr 5 May 24 (Transplant out) -
Lovage Apr 5 May 17 (Transplant out) Jun 11
Anise Hyssop Mar 22 May 17 (Transplant out) -
Shiso Apr 5 May 24 (Transplant out) -
Stevia Mar 22 May 31 (Transplant out) -
Chamomile Apr 5 May 3 (Transplant out) Jul 6
Tarragon May 17 May 17 (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 Cooperstown, Nd, 17.3 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

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