Harman US

Planting Calendar for ZIP 53222

Based on your local frost dates - last spring frost around Apr 26, first fall frost around Oct 18 - here is when to plant 79 common crops near ZIP 53222.

Last spring frost
Apr 26
First fall frost
Oct 18
Hardiness zone
5b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 15 May 3 (Transplant out) -
Peppers Mar 1 May 10 (Transplant out) -
Cucumbers Apr 5 May 3 (Transplant out) Aug 10
Zucchini Apr 5 May 3 (Transplant out) Aug 15
Summer Squash Apr 5 May 3 (Transplant out) Aug 13
Winter Squash Apr 5 May 3 (Transplant out) -
Pumpkins Apr 5 May 3 (Transplant out) -
Green Beans - Apr 26 (Direct sow) Aug 10
Sweet Corn - May 3 (Direct sow) -
Melons Apr 5 May 10 (Transplant out) -
Watermelon Apr 5 May 10 (Transplant out) -
Okra - May 10 (Direct sow) -
Eggplant Mar 1 May 10 (Transplant out) -
Lettuce Mar 29 Mar 29 (Transplant out) Aug 15
Spinach - Mar 15 (Direct sow) Aug 20
Kale Mar 15 Apr 5 (Transplant out) Aug 10
Peas - Mar 15 (Direct sow) Aug 5
Carrots - Apr 5 (Direct sow) Jul 26
Beets - Mar 29 (Direct sow) Aug 10
Radishes - Mar 29 (Direct sow) Sep 6
Broccoli Mar 15 Apr 12 (Transplant out) Jul 31
Cauliflower Mar 15 Apr 12 (Transplant out) Jul 26
Cabbage Mar 15 Apr 5 (Transplant out) Jul 26
Onions Feb 15 Mar 29 (Transplant out) -
Potatoes - Apr 12 (Direct sow) -
Swiss Chard Mar 29 Apr 12 (Transplant out) Aug 10
Sweet Potatoes - May 17 (Direct sow) -
Brussels Sprouts Mar 15 Apr 12 (Transplant out) Jun 26
Celery Feb 15 May 3 (Transplant out) -
Leeks Feb 15 Apr 12 (Transplant out) Jun 6
Turnips - Apr 12 (Direct sow) Aug 15
Rutabaga - Apr 26 (Direct sow) Jul 1
Parsnips - Apr 12 (Direct sow) Jun 6
Kohlrabi Mar 29 Apr 12 (Transplant out) Aug 10
Collard Greens Mar 15 Apr 12 (Transplant out) Jul 31
Mustard Greens - Apr 12 (Direct sow) Aug 20
Arugula - Apr 12 (Direct sow) Aug 25
Bok Choy Mar 29 Apr 12 (Transplant out) Aug 15
Green Onions - Apr 12 (Direct sow) Aug 5
Tomatillos Mar 15 May 3 (Transplant out) -
Fennel Mar 29 Apr 12 (Transplant out) Jul 16
Popcorn Apr 26 May 10 (Transplant out) -
Black-Eyed Peas Apr 26 May 10 (Transplant out) Jul 16
Lima Beans Apr 26 May 10 (Transplant out) -
Edamame Apr 26 May 10 (Transplant out) -
Peanuts Apr 26 May 10 (Transplant out) -
Globe Artichoke Mar 1 Apr 12 (Transplant out) Jul 6
Horseradish Apr 26 Apr 12 (Transplant out) -
Ground Cherries Mar 15 May 10 (Transplant out) -
Radicchio Mar 22 Apr 12 (Transplant out) Jul 26
Endive Mar 22 Apr 12 (Transplant out) Jul 6
Watercress Apr 5 Apr 12 (Transplant out) Aug 5
Sorrel Mar 15 Apr 5 (Transplant out) Aug 5
Sunchokes Apr 26 Apr 12 (Transplant out) -
Malabar Spinach Mar 15 May 10 (Transplant out) -
Amaranth Greens Apr 5 May 10 (Transplant out) Aug 20
Luffa Gourd Mar 15 May 10 (Transplant out) -
New Zealand Spinach Mar 29 May 10 (Transplant out) -
Fava Beans Apr 26 Mar 29 (Transplant out) Jul 11
Chayote Mar 29 May 10 (Transplant out) -
Corn Salad Apr 26 Mar 29 (Transplant out) Aug 5
Bitter Melon Mar 29 May 10 (Transplant out) -
Cardoon Mar 15 Apr 26 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 15 May 3 (Transplant out) -
Cilantro - Apr 12 (Direct sow) Aug 15
Parsley Mar 1 May 10 (Transplant out) Jul 21
Dill - May 3 (Direct sow) Aug 5
Lemon Balm Mar 15 Apr 26 (Transplant out) -
Borage Apr 26 Apr 26 (Transplant out) Aug 10
Chervil Apr 26 Apr 5 (Transplant out) Aug 10
Lemongrass Mar 1 May 10 (Transplant out) -
Summer Savory Mar 15 Apr 26 (Transplant out) -
Marjoram Mar 15 May 3 (Transplant out) -
Lovage Mar 15 Apr 26 (Transplant out) Jul 6
Anise Hyssop Mar 1 Apr 26 (Transplant out) -
Shiso Mar 15 May 3 (Transplant out) -
Stevia Mar 1 May 10 (Transplant out) -
Chamomile Mar 15 Apr 12 (Transplant out) Jul 31
Tarragon Apr 26 Apr 26 (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 Mt Mary College, Wi, 0.7 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 53222 Local weather →