Harman US

Planting Calendar for ZIP 58788

Based on your local frost dates - last spring frost around May 17, first fall frost around Sep 22 - here is when to plant 79 common crops near ZIP 58788.

Last spring frost
May 17
First fall frost
Sep 22
Hardiness zone
3b

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 15
Zucchini Apr 26 May 24 (Transplant out) Jul 20
Summer Squash Apr 26 May 24 (Transplant out) Jul 18
Winter Squash Apr 26 May 24 (Transplant out) -
Pumpkins Apr 26 May 24 (Transplant out) -
Green Beans - May 17 (Direct sow) Jul 15
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 20
Spinach - Apr 5 (Direct sow) Jul 25
Kale Apr 5 Apr 26 (Transplant out) Jul 15
Peas - Apr 5 (Direct sow) Jul 10
Carrots - Apr 26 (Direct sow) Jun 30
Beets - Apr 19 (Direct sow) Jul 15
Radishes - Apr 19 (Direct sow) Aug 11
Broccoli Apr 5 May 3 (Transplant out) Jul 5
Cauliflower Apr 5 May 3 (Transplant out) Jun 30
Cabbage Apr 5 Apr 26 (Transplant out) Jun 30
Onions Mar 8 Apr 19 (Transplant out) -
Potatoes - May 3 (Direct sow) -
Swiss Chard Apr 19 May 3 (Transplant out) Jul 15
Sweet Potatoes - Jun 7 (Direct sow) -
Brussels Sprouts Apr 5 May 3 (Transplant out) May 31
Celery Mar 8 May 24 (Transplant out) -
Leeks Mar 8 May 3 (Transplant out) May 11
Turnips - May 3 (Direct sow) Jul 20
Rutabaga - May 17 (Direct sow) Jun 5
Parsnips - May 3 (Direct sow) May 11
Kohlrabi Apr 19 May 3 (Transplant out) Jul 15
Collard Greens Apr 5 May 3 (Transplant out) Jul 5
Mustard Greens - May 3 (Direct sow) Jul 25
Arugula - May 3 (Direct sow) Jul 30
Bok Choy Apr 19 May 3 (Transplant out) Jul 20
Green Onions - May 3 (Direct sow) Jul 10
Tomatillos Apr 5 May 24 (Transplant out) -
Fennel Apr 19 May 3 (Transplant out) Jun 20
Popcorn May 17 May 31 (Transplant out) -
Black-Eyed Peas May 17 May 31 (Transplant out) Jun 20
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 10
Horseradish May 17 May 3 (Transplant out) -
Ground Cherries Apr 5 May 31 (Transplant out) -
Radicchio Apr 12 May 3 (Transplant out) Jun 30
Endive Apr 12 May 3 (Transplant out) Jun 10
Watercress Apr 26 May 3 (Transplant out) Jul 10
Sorrel Apr 5 Apr 26 (Transplant out) Jul 10
Sunchokes May 17 May 3 (Transplant out) -
Malabar Spinach Apr 5 May 31 (Transplant out) -
Amaranth Greens Apr 26 May 31 (Transplant out) Jul 25
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 15
Chayote Apr 19 May 31 (Transplant out) -
Corn Salad May 17 Apr 19 (Transplant out) Jul 10
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 20
Parsley Mar 22 May 31 (Transplant out) Jun 25
Dill - May 24 (Direct sow) Jul 10
Lemon Balm Apr 5 May 17 (Transplant out) -
Borage May 17 May 17 (Transplant out) Jul 15
Chervil May 17 Apr 26 (Transplant out) Jul 15
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 10
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 5
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 Towner 2 Ne, Nd, 5.1 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 58788 Local weather →