Harman US

Planting Calendar for ZIP 50843

Based on your local frost dates - last spring frost around Apr 30, first fall frost around Oct 2 - here is when to plant 79 common crops near ZIP 50843.

Last spring frost
Apr 30
First fall frost
Oct 2
Hardiness zone
5b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 19 May 7 (Transplant out) -
Peppers Mar 5 May 14 (Transplant out) -
Cucumbers Apr 9 May 7 (Transplant out) Jul 25
Zucchini Apr 9 May 7 (Transplant out) Jul 30
Summer Squash Apr 9 May 7 (Transplant out) Jul 28
Winter Squash Apr 9 May 7 (Transplant out) -
Pumpkins Apr 9 May 7 (Transplant out) -
Green Beans - Apr 30 (Direct sow) Jul 25
Sweet Corn - May 7 (Direct sow) -
Melons Apr 9 May 14 (Transplant out) -
Watermelon Apr 9 May 14 (Transplant out) -
Okra - May 14 (Direct sow) -
Eggplant Mar 5 May 14 (Transplant out) -
Lettuce Apr 2 Apr 2 (Transplant out) Jul 30
Spinach - Mar 19 (Direct sow) Aug 4
Kale Mar 19 Apr 9 (Transplant out) Jul 25
Peas - Mar 19 (Direct sow) Jul 20
Carrots - Apr 9 (Direct sow) Jul 10
Beets - Apr 2 (Direct sow) Jul 25
Radishes - Apr 2 (Direct sow) Aug 21
Broccoli Mar 19 Apr 16 (Transplant out) Jul 15
Cauliflower Mar 19 Apr 16 (Transplant out) Jul 10
Cabbage Mar 19 Apr 9 (Transplant out) Jul 10
Onions Feb 19 Apr 2 (Transplant out) -
Potatoes - Apr 16 (Direct sow) -
Swiss Chard Apr 2 Apr 16 (Transplant out) Jul 25
Sweet Potatoes - May 21 (Direct sow) -
Brussels Sprouts Mar 19 Apr 16 (Transplant out) Jun 10
Celery Feb 19 May 7 (Transplant out) -
Leeks Feb 19 Apr 16 (Transplant out) May 21
Turnips - Apr 16 (Direct sow) Jul 30
Rutabaga - Apr 30 (Direct sow) Jun 15
Parsnips - Apr 16 (Direct sow) May 21
Kohlrabi Apr 2 Apr 16 (Transplant out) Jul 25
Collard Greens Mar 19 Apr 16 (Transplant out) Jul 15
Mustard Greens - Apr 16 (Direct sow) Aug 4
Arugula - Apr 16 (Direct sow) Aug 9
Bok Choy Apr 2 Apr 16 (Transplant out) Jul 30
Green Onions - Apr 16 (Direct sow) Jul 20
Tomatillos Mar 19 May 7 (Transplant out) -
Fennel Apr 2 Apr 16 (Transplant out) Jun 30
Popcorn Apr 30 May 14 (Transplant out) -
Black-Eyed Peas Apr 30 May 14 (Transplant out) Jun 30
Lima Beans Apr 30 May 14 (Transplant out) -
Edamame Apr 30 May 14 (Transplant out) -
Peanuts Apr 30 May 14 (Transplant out) -
Globe Artichoke Mar 5 Apr 16 (Transplant out) Jun 20
Horseradish Apr 30 Apr 16 (Transplant out) -
Ground Cherries Mar 19 May 14 (Transplant out) -
Radicchio Mar 26 Apr 16 (Transplant out) Jul 10
Endive Mar 26 Apr 16 (Transplant out) Jun 20
Watercress Apr 9 Apr 16 (Transplant out) Jul 20
Sorrel Mar 19 Apr 9 (Transplant out) Jul 20
Sunchokes Apr 30 Apr 16 (Transplant out) -
Malabar Spinach Mar 19 May 14 (Transplant out) -
Amaranth Greens Apr 9 May 14 (Transplant out) Aug 4
Luffa Gourd Mar 19 May 14 (Transplant out) -
New Zealand Spinach Apr 2 May 14 (Transplant out) -
Fava Beans Apr 30 Apr 2 (Transplant out) Jun 25
Chayote Apr 2 May 14 (Transplant out) -
Corn Salad Apr 30 Apr 2 (Transplant out) Jul 20
Bitter Melon Apr 2 May 14 (Transplant out) -
Cardoon Mar 19 Apr 30 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 19 May 7 (Transplant out) -
Cilantro - Apr 16 (Direct sow) Jul 30
Parsley Mar 5 May 14 (Transplant out) Jul 5
Dill - May 7 (Direct sow) Jul 20
Lemon Balm Mar 19 Apr 30 (Transplant out) -
Borage Apr 30 Apr 30 (Transplant out) Jul 25
Chervil Apr 30 Apr 9 (Transplant out) Jul 25
Lemongrass Mar 5 May 14 (Transplant out) -
Summer Savory Mar 19 Apr 30 (Transplant out) -
Marjoram Mar 19 May 7 (Transplant out) -
Lovage Mar 19 Apr 30 (Transplant out) Jun 20
Anise Hyssop Mar 5 Apr 30 (Transplant out) -
Shiso Mar 19 May 7 (Transplant out) -
Stevia Mar 5 May 14 (Transplant out) -
Chamomile Mar 19 Apr 16 (Transplant out) Jul 15
Tarragon Apr 30 Apr 30 (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 Atlantic 1 Ne, Ia, 13.9 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 50843 Local weather →