Harman US

Planting Calendar for ZIP 54246

Based on your local frost dates - last spring frost around May 15, first fall frost around Oct 14 - here is when to plant 79 common crops near ZIP 54246.

Last spring frost
May 15
First fall frost
Oct 14
Hardiness zone
6a

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) Aug 6
Zucchini Apr 24 May 22 (Transplant out) Aug 11
Summer Squash Apr 24 May 22 (Transplant out) Aug 9
Winter Squash Apr 24 May 22 (Transplant out) -
Pumpkins Apr 24 May 22 (Transplant out) -
Green Beans - May 15 (Direct sow) Aug 6
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) Aug 11
Spinach - Apr 3 (Direct sow) Aug 16
Kale Apr 3 Apr 24 (Transplant out) Aug 6
Peas - Apr 3 (Direct sow) Aug 1
Carrots - Apr 24 (Direct sow) Jul 22
Beets - Apr 17 (Direct sow) Aug 6
Radishes - Apr 17 (Direct sow) Sep 2
Broccoli Apr 3 May 1 (Transplant out) Jul 27
Cauliflower Apr 3 May 1 (Transplant out) Jul 22
Cabbage Apr 3 Apr 24 (Transplant out) Jul 22
Onions Mar 6 Apr 17 (Transplant out) -
Potatoes - May 1 (Direct sow) -
Swiss Chard Apr 17 May 1 (Transplant out) Aug 6
Sweet Potatoes - Jun 5 (Direct sow) -
Brussels Sprouts Apr 3 May 1 (Transplant out) Jun 22
Celery Mar 6 May 22 (Transplant out) -
Leeks Mar 6 May 1 (Transplant out) Jun 2
Turnips - May 1 (Direct sow) Aug 11
Rutabaga - May 15 (Direct sow) Jun 27
Parsnips - May 1 (Direct sow) Jun 2
Kohlrabi Apr 17 May 1 (Transplant out) Aug 6
Collard Greens Apr 3 May 1 (Transplant out) Jul 27
Mustard Greens - May 1 (Direct sow) Aug 16
Arugula - May 1 (Direct sow) Aug 21
Bok Choy Apr 17 May 1 (Transplant out) Aug 11
Green Onions - May 1 (Direct sow) Aug 1
Tomatillos Apr 3 May 22 (Transplant out) -
Fennel Apr 17 May 1 (Transplant out) Jul 12
Popcorn May 15 May 29 (Transplant out) -
Black-Eyed Peas May 15 May 29 (Transplant out) Jul 12
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) Jul 2
Horseradish May 15 May 1 (Transplant out) -
Ground Cherries Apr 3 May 29 (Transplant out) -
Radicchio Apr 10 May 1 (Transplant out) Jul 22
Endive Apr 10 May 1 (Transplant out) Jul 2
Watercress Apr 24 May 1 (Transplant out) Aug 1
Sorrel Apr 3 Apr 24 (Transplant out) Aug 1
Sunchokes May 15 May 1 (Transplant out) -
Malabar Spinach Apr 3 May 29 (Transplant out) -
Amaranth Greens Apr 24 May 29 (Transplant out) Aug 16
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) Jul 7
Chayote Apr 17 May 29 (Transplant out) -
Corn Salad May 15 Apr 17 (Transplant out) Aug 1
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) Aug 11
Parsley Mar 20 May 29 (Transplant out) Jul 17
Dill - May 22 (Direct sow) Aug 1
Lemon Balm Apr 3 May 15 (Transplant out) -
Borage May 15 May 15 (Transplant out) Aug 6
Chervil May 15 Apr 24 (Transplant out) Aug 6
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) Jul 2
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 27
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 Washington Is, Wi, 1.1 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 54246 Local weather →