Harman US

Planting Calendar for ZIP 54768

Based on your local frost dates - last spring frost around May 7, first fall frost around Oct 3 - here is when to plant 79 common crops near ZIP 54768.

Last spring frost
May 7
First fall frost
Oct 3
Hardiness zone
4b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 26 May 14 (Transplant out) -
Peppers Mar 12 May 21 (Transplant out) -
Cucumbers Apr 16 May 14 (Transplant out) Jul 26
Zucchini Apr 16 May 14 (Transplant out) Jul 31
Summer Squash Apr 16 May 14 (Transplant out) Jul 29
Winter Squash Apr 16 May 14 (Transplant out) -
Pumpkins Apr 16 May 14 (Transplant out) -
Green Beans - May 7 (Direct sow) Jul 26
Sweet Corn - May 14 (Direct sow) -
Melons Apr 16 May 21 (Transplant out) -
Watermelon Apr 16 May 21 (Transplant out) -
Okra - May 21 (Direct sow) -
Eggplant Mar 12 May 21 (Transplant out) -
Lettuce Apr 9 Apr 9 (Transplant out) Jul 31
Spinach - Mar 26 (Direct sow) Aug 5
Kale Mar 26 Apr 16 (Transplant out) Jul 26
Peas - Mar 26 (Direct sow) Jul 21
Carrots - Apr 16 (Direct sow) Jul 11
Beets - Apr 9 (Direct sow) Jul 26
Radishes - Apr 9 (Direct sow) Aug 22
Broccoli Mar 26 Apr 23 (Transplant out) Jul 16
Cauliflower Mar 26 Apr 23 (Transplant out) Jul 11
Cabbage Mar 26 Apr 16 (Transplant out) Jul 11
Onions Feb 26 Apr 9 (Transplant out) -
Potatoes - Apr 23 (Direct sow) -
Swiss Chard Apr 9 Apr 23 (Transplant out) Jul 26
Sweet Potatoes - May 28 (Direct sow) -
Brussels Sprouts Mar 26 Apr 23 (Transplant out) Jun 11
Celery Feb 26 May 14 (Transplant out) -
Leeks Feb 26 Apr 23 (Transplant out) May 22
Turnips - Apr 23 (Direct sow) Jul 31
Rutabaga - May 7 (Direct sow) Jun 16
Parsnips - Apr 23 (Direct sow) May 22
Kohlrabi Apr 9 Apr 23 (Transplant out) Jul 26
Collard Greens Mar 26 Apr 23 (Transplant out) Jul 16
Mustard Greens - Apr 23 (Direct sow) Aug 5
Arugula - Apr 23 (Direct sow) Aug 10
Bok Choy Apr 9 Apr 23 (Transplant out) Jul 31
Green Onions - Apr 23 (Direct sow) Jul 21
Tomatillos Mar 26 May 14 (Transplant out) -
Fennel Apr 9 Apr 23 (Transplant out) Jul 1
Popcorn May 7 May 21 (Transplant out) -
Black-Eyed Peas May 7 May 21 (Transplant out) Jul 1
Lima Beans May 7 May 21 (Transplant out) -
Edamame May 7 May 21 (Transplant out) -
Peanuts May 7 May 21 (Transplant out) -
Globe Artichoke Mar 12 Apr 23 (Transplant out) Jun 21
Horseradish May 7 Apr 23 (Transplant out) -
Ground Cherries Mar 26 May 21 (Transplant out) -
Radicchio Apr 2 Apr 23 (Transplant out) Jul 11
Endive Apr 2 Apr 23 (Transplant out) Jun 21
Watercress Apr 16 Apr 23 (Transplant out) Jul 21
Sorrel Mar 26 Apr 16 (Transplant out) Jul 21
Sunchokes May 7 Apr 23 (Transplant out) -
Malabar Spinach Mar 26 May 21 (Transplant out) -
Amaranth Greens Apr 16 May 21 (Transplant out) Aug 5
Luffa Gourd Mar 26 May 21 (Transplant out) -
New Zealand Spinach Apr 9 May 21 (Transplant out) -
Fava Beans May 7 Apr 9 (Transplant out) Jun 26
Chayote Apr 9 May 21 (Transplant out) -
Corn Salad May 7 Apr 9 (Transplant out) Jul 21
Bitter Melon Apr 9 May 21 (Transplant out) -
Cardoon Mar 26 May 7 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 26 May 14 (Transplant out) -
Cilantro - Apr 23 (Direct sow) Jul 31
Parsley Mar 12 May 21 (Transplant out) Jul 6
Dill - May 14 (Direct sow) Jul 21
Lemon Balm Mar 26 May 7 (Transplant out) -
Borage May 7 May 7 (Transplant out) Jul 26
Chervil May 7 Apr 16 (Transplant out) Jul 26
Lemongrass Mar 12 May 21 (Transplant out) -
Summer Savory Mar 26 May 7 (Transplant out) -
Marjoram Mar 26 May 14 (Transplant out) -
Lovage Mar 26 May 7 (Transplant out) Jun 21
Anise Hyssop Mar 12 May 7 (Transplant out) -
Shiso Mar 26 May 14 (Transplant out) -
Stevia Mar 12 May 21 (Transplant out) -
Chamomile Mar 26 Apr 23 (Transplant out) Jul 16
Tarragon May 7 May 7 (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 Stanley Wwtp, Wi, 1 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 54768 Local weather →