Harman US

Planting Calendar for ZIP 61285

Based on your local frost dates - last spring frost around Apr 13, first fall frost around Oct 26 - here is when to plant 79 common crops near ZIP 61285.

Last spring frost
Apr 13
First fall frost
Oct 26
Hardiness zone
5b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 2 Apr 20 (Transplant out) -
Peppers Feb 16 Apr 27 (Transplant out) -
Cucumbers Mar 23 Apr 20 (Transplant out) Aug 18
Zucchini Mar 23 Apr 20 (Transplant out) Aug 23
Summer Squash Mar 23 Apr 20 (Transplant out) Aug 21
Winter Squash Mar 23 Apr 20 (Transplant out) -
Pumpkins Mar 23 Apr 20 (Transplant out) -
Green Beans - Apr 13 (Direct sow) Aug 18
Sweet Corn - Apr 20 (Direct sow) -
Melons Mar 23 Apr 27 (Transplant out) -
Watermelon Mar 23 Apr 27 (Transplant out) -
Okra - Apr 27 (Direct sow) -
Eggplant Feb 16 Apr 27 (Transplant out) -
Lettuce Mar 16 Mar 16 (Transplant out) Aug 23
Spinach - Mar 2 (Direct sow) Aug 28
Kale Mar 2 Mar 23 (Transplant out) Aug 18
Peas - Mar 2 (Direct sow) Aug 13
Carrots - Mar 23 (Direct sow) Aug 3
Beets - Mar 16 (Direct sow) Aug 18
Radishes - Mar 16 (Direct sow) Sep 14
Broccoli Mar 2 Mar 30 (Transplant out) Aug 8
Cauliflower Mar 2 Mar 30 (Transplant out) Aug 3
Cabbage Mar 2 Mar 23 (Transplant out) Aug 3
Onions Feb 2 Mar 16 (Transplant out) -
Potatoes - Mar 30 (Direct sow) -
Swiss Chard Mar 16 Mar 30 (Transplant out) Aug 18
Sweet Potatoes - May 4 (Direct sow) -
Brussels Sprouts Mar 2 Mar 30 (Transplant out) Jul 4
Celery Feb 2 Apr 20 (Transplant out) -
Leeks Feb 2 Mar 30 (Transplant out) Jun 14
Turnips - Mar 30 (Direct sow) Aug 23
Rutabaga - Apr 13 (Direct sow) Jul 9
Parsnips - Mar 30 (Direct sow) Jun 14
Kohlrabi Mar 16 Mar 30 (Transplant out) Aug 18
Collard Greens Mar 2 Mar 30 (Transplant out) Aug 8
Mustard Greens - Mar 30 (Direct sow) Aug 28
Arugula - Mar 30 (Direct sow) Sep 2
Bok Choy Mar 16 Mar 30 (Transplant out) Aug 23
Green Onions - Mar 30 (Direct sow) Aug 13
Tomatillos Mar 2 Apr 20 (Transplant out) -
Fennel Mar 16 Mar 30 (Transplant out) Jul 24
Popcorn Apr 13 Apr 27 (Transplant out) -
Black-Eyed Peas Apr 13 Apr 27 (Transplant out) Jul 24
Lima Beans Apr 13 Apr 27 (Transplant out) -
Edamame Apr 13 Apr 27 (Transplant out) -
Peanuts Apr 13 Apr 27 (Transplant out) -
Globe Artichoke Feb 16 Mar 30 (Transplant out) Jul 14
Horseradish Apr 13 Mar 30 (Transplant out) -
Ground Cherries Mar 2 Apr 27 (Transplant out) -
Radicchio Mar 9 Mar 30 (Transplant out) Aug 3
Endive Mar 9 Mar 30 (Transplant out) Jul 14
Watercress Mar 23 Mar 30 (Transplant out) Aug 13
Sorrel Mar 2 Mar 23 (Transplant out) Aug 13
Sunchokes Apr 13 Mar 30 (Transplant out) -
Malabar Spinach Mar 2 Apr 27 (Transplant out) -
Amaranth Greens Mar 23 Apr 27 (Transplant out) Aug 28
Luffa Gourd Mar 2 Apr 27 (Transplant out) -
New Zealand Spinach Mar 16 Apr 27 (Transplant out) -
Fava Beans Apr 13 Mar 16 (Transplant out) Jul 19
Chayote Mar 16 Apr 27 (Transplant out) -
Corn Salad Apr 13 Mar 16 (Transplant out) Aug 13
Bitter Melon Mar 16 Apr 27 (Transplant out) -
Cardoon Mar 2 Apr 13 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 2 Apr 20 (Transplant out) -
Cilantro - Mar 30 (Direct sow) Aug 23
Parsley Feb 16 Apr 27 (Transplant out) Jul 29
Dill - Apr 20 (Direct sow) Aug 13
Lemon Balm Mar 2 Apr 13 (Transplant out) -
Borage Apr 13 Apr 13 (Transplant out) Aug 18
Chervil Apr 13 Mar 23 (Transplant out) Aug 18
Lemongrass Feb 16 Apr 27 (Transplant out) -
Summer Savory Mar 2 Apr 13 (Transplant out) -
Marjoram Mar 2 Apr 20 (Transplant out) -
Lovage Mar 2 Apr 13 (Transplant out) Jul 14
Anise Hyssop Feb 16 Apr 13 (Transplant out) -
Shiso Mar 2 Apr 20 (Transplant out) -
Stevia Feb 16 Apr 27 (Transplant out) -
Chamomile Mar 2 Mar 30 (Transplant out) Aug 8
Tarragon Apr 13 Apr 13 (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 Fulton L&D #13, Il, 7.6 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 61285 Local weather →