Harman US

Planting Calendar for ZIP 58338

Based on your local frost dates - last spring frost around May 15, first fall frost around Sep 22 - here is when to plant 79 common crops near ZIP 58338.

Last spring frost
May 15
First fall frost
Sep 22
Hardiness zone
4a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 3 May 22 (Transplant out) -
Peppers Mar 20 May 29 (Transplant out) -
Cucumbers Apr 24 May 22 (Transplant out) Jul 15
Zucchini Apr 24 May 22 (Transplant out) Jul 20
Summer Squash Apr 24 May 22 (Transplant out) Jul 18
Winter Squash Apr 24 May 22 (Transplant out) -
Pumpkins Apr 24 May 22 (Transplant out) -
Green Beans - May 15 (Direct sow) Jul 15
Sweet Corn - May 22 (Direct sow) -
Melons Apr 24 May 29 (Transplant out) -
Watermelon Apr 24 May 29 (Transplant out) -
Okra - May 29 (Direct sow) -
Eggplant Mar 20 May 29 (Transplant out) -
Lettuce Apr 17 Apr 17 (Transplant out) Jul 20
Spinach - Apr 3 (Direct sow) Jul 25
Kale Apr 3 Apr 24 (Transplant out) Jul 15
Peas - Apr 3 (Direct sow) Jul 10
Carrots - Apr 24 (Direct sow) Jun 30
Beets - Apr 17 (Direct sow) Jul 15
Radishes - Apr 17 (Direct sow) Aug 11
Broccoli Apr 3 May 1 (Transplant out) Jul 5
Cauliflower Apr 3 May 1 (Transplant out) Jun 30
Cabbage Apr 3 Apr 24 (Transplant out) Jun 30
Onions Mar 6 Apr 17 (Transplant out) -
Potatoes - May 1 (Direct sow) -
Swiss Chard Apr 17 May 1 (Transplant out) Jul 15
Sweet Potatoes - Jun 5 (Direct sow) -
Brussels Sprouts Apr 3 May 1 (Transplant out) May 31
Celery Mar 6 May 22 (Transplant out) -
Leeks Mar 6 May 1 (Transplant out) May 11
Turnips - May 1 (Direct sow) Jul 20
Rutabaga - May 15 (Direct sow) Jun 5
Parsnips - May 1 (Direct sow) May 11
Kohlrabi Apr 17 May 1 (Transplant out) Jul 15
Collard Greens Apr 3 May 1 (Transplant out) Jul 5
Mustard Greens - May 1 (Direct sow) Jul 25
Arugula - May 1 (Direct sow) Jul 30
Bok Choy Apr 17 May 1 (Transplant out) Jul 20
Green Onions - May 1 (Direct sow) Jul 10
Tomatillos Apr 3 May 22 (Transplant out) -
Fennel Apr 17 May 1 (Transplant out) Jun 20
Popcorn May 15 May 29 (Transplant out) -
Black-Eyed Peas May 15 May 29 (Transplant out) Jun 20
Lima Beans May 15 May 29 (Transplant out) -
Edamame May 15 May 29 (Transplant out) -
Peanuts May 15 May 29 (Transplant out) -
Globe Artichoke Mar 20 May 1 (Transplant out) Jun 10
Horseradish May 15 May 1 (Transplant out) -
Ground Cherries Apr 3 May 29 (Transplant out) -
Radicchio Apr 10 May 1 (Transplant out) Jun 30
Endive Apr 10 May 1 (Transplant out) Jun 10
Watercress Apr 24 May 1 (Transplant out) Jul 10
Sorrel Apr 3 Apr 24 (Transplant out) Jul 10
Sunchokes May 15 May 1 (Transplant out) -
Malabar Spinach Apr 3 May 29 (Transplant out) -
Amaranth Greens Apr 24 May 29 (Transplant out) Jul 25
Luffa Gourd Apr 3 May 29 (Transplant out) -
New Zealand Spinach Apr 17 May 29 (Transplant out) -
Fava Beans May 15 Apr 17 (Transplant out) Jun 15
Chayote Apr 17 May 29 (Transplant out) -
Corn Salad May 15 Apr 17 (Transplant out) Jul 10
Bitter Melon Apr 17 May 29 (Transplant out) -
Cardoon Apr 3 May 15 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 3 May 22 (Transplant out) -
Cilantro - May 1 (Direct sow) Jul 20
Parsley Mar 20 May 29 (Transplant out) Jun 25
Dill - May 22 (Direct sow) Jul 10
Lemon Balm Apr 3 May 15 (Transplant out) -
Borage May 15 May 15 (Transplant out) Jul 15
Chervil May 15 Apr 24 (Transplant out) Jul 15
Lemongrass Mar 20 May 29 (Transplant out) -
Summer Savory Apr 3 May 15 (Transplant out) -
Marjoram Apr 3 May 22 (Transplant out) -
Lovage Apr 3 May 15 (Transplant out) Jun 10
Anise Hyssop Mar 20 May 15 (Transplant out) -
Shiso Apr 3 May 22 (Transplant out) -
Stevia Mar 20 May 29 (Transplant out) -
Chamomile Apr 3 May 1 (Transplant out) Jul 5
Tarragon May 15 May 15 (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 Edmore 4Nw, Nd, 6.9 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 58338 Local weather →