Harman US

Planting Calendar for ZIP 56636

Based on your local frost dates - last spring frost around May 16, first fall frost around Oct 1 - here is when to plant 79 common crops near ZIP 56636.

Last spring frost
May 16
First fall frost
Oct 1
Hardiness zone
3b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 4 May 23 (Transplant out) -
Peppers Mar 21 May 30 (Transplant out) -
Cucumbers Apr 25 May 23 (Transplant out) Jul 24
Zucchini Apr 25 May 23 (Transplant out) Jul 29
Summer Squash Apr 25 May 23 (Transplant out) Jul 27
Winter Squash Apr 25 May 23 (Transplant out) -
Pumpkins Apr 25 May 23 (Transplant out) -
Green Beans - May 16 (Direct sow) Jul 24
Sweet Corn - May 23 (Direct sow) -
Melons Apr 25 May 30 (Transplant out) -
Watermelon Apr 25 May 30 (Transplant out) -
Okra - May 30 (Direct sow) -
Eggplant Mar 21 May 30 (Transplant out) -
Lettuce Apr 18 Apr 18 (Transplant out) Jul 29
Spinach - Apr 4 (Direct sow) Aug 3
Kale Apr 4 Apr 25 (Transplant out) Jul 24
Peas - Apr 4 (Direct sow) Jul 19
Carrots - Apr 25 (Direct sow) Jul 9
Beets - Apr 18 (Direct sow) Jul 24
Radishes - Apr 18 (Direct sow) Aug 20
Broccoli Apr 4 May 2 (Transplant out) Jul 14
Cauliflower Apr 4 May 2 (Transplant out) Jul 9
Cabbage Apr 4 Apr 25 (Transplant out) Jul 9
Onions Mar 7 Apr 18 (Transplant out) -
Potatoes - May 2 (Direct sow) -
Swiss Chard Apr 18 May 2 (Transplant out) Jul 24
Sweet Potatoes - Jun 6 (Direct sow) -
Brussels Sprouts Apr 4 May 2 (Transplant out) Jun 9
Celery Mar 7 May 23 (Transplant out) -
Leeks Mar 7 May 2 (Transplant out) May 20
Turnips - May 2 (Direct sow) Jul 29
Rutabaga - May 16 (Direct sow) Jun 14
Parsnips - May 2 (Direct sow) May 20
Kohlrabi Apr 18 May 2 (Transplant out) Jul 24
Collard Greens Apr 4 May 2 (Transplant out) Jul 14
Mustard Greens - May 2 (Direct sow) Aug 3
Arugula - May 2 (Direct sow) Aug 8
Bok Choy Apr 18 May 2 (Transplant out) Jul 29
Green Onions - May 2 (Direct sow) Jul 19
Tomatillos Apr 4 May 23 (Transplant out) -
Fennel Apr 18 May 2 (Transplant out) Jun 29
Popcorn May 16 May 30 (Transplant out) -
Black-Eyed Peas May 16 May 30 (Transplant out) Jun 29
Lima Beans May 16 May 30 (Transplant out) -
Edamame May 16 May 30 (Transplant out) -
Peanuts May 16 May 30 (Transplant out) -
Globe Artichoke Mar 21 May 2 (Transplant out) Jun 19
Horseradish May 16 May 2 (Transplant out) -
Ground Cherries Apr 4 May 30 (Transplant out) -
Radicchio Apr 11 May 2 (Transplant out) Jul 9
Endive Apr 11 May 2 (Transplant out) Jun 19
Watercress Apr 25 May 2 (Transplant out) Jul 19
Sorrel Apr 4 Apr 25 (Transplant out) Jul 19
Sunchokes May 16 May 2 (Transplant out) -
Malabar Spinach Apr 4 May 30 (Transplant out) -
Amaranth Greens Apr 25 May 30 (Transplant out) Aug 3
Luffa Gourd Apr 4 May 30 (Transplant out) -
New Zealand Spinach Apr 18 May 30 (Transplant out) -
Fava Beans May 16 Apr 18 (Transplant out) Jun 24
Chayote Apr 18 May 30 (Transplant out) -
Corn Salad May 16 Apr 18 (Transplant out) Jul 19
Bitter Melon Apr 18 May 30 (Transplant out) -
Cardoon Apr 4 May 16 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 4 May 23 (Transplant out) -
Cilantro - May 2 (Direct sow) Jul 29
Parsley Mar 21 May 30 (Transplant out) Jul 4
Dill - May 23 (Direct sow) Jul 19
Lemon Balm Apr 4 May 16 (Transplant out) -
Borage May 16 May 16 (Transplant out) Jul 24
Chervil May 16 Apr 25 (Transplant out) Jul 24
Lemongrass Mar 21 May 30 (Transplant out) -
Summer Savory Apr 4 May 16 (Transplant out) -
Marjoram Apr 4 May 23 (Transplant out) -
Lovage Apr 4 May 16 (Transplant out) Jun 19
Anise Hyssop Mar 21 May 16 (Transplant out) -
Shiso Apr 4 May 23 (Transplant out) -
Stevia Mar 21 May 30 (Transplant out) -
Chamomile Apr 4 May 2 (Transplant out) Jul 14
Tarragon May 16 May 16 (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 Pokegama Dam, Mn, 15.6 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 56636 Local weather →