Harman US

Planting Calendar for ZIP 61562

Based on your local frost dates - last spring frost around Apr 20, first fall frost around Oct 17 - here is when to plant 79 common crops near ZIP 61562.

Last spring frost
Apr 20
First fall frost
Oct 17
Hardiness zone
6a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 9 Apr 27 (Transplant out) -
Peppers Feb 23 May 4 (Transplant out) -
Cucumbers Mar 30 Apr 27 (Transplant out) Aug 9
Zucchini Mar 30 Apr 27 (Transplant out) Aug 14
Summer Squash Mar 30 Apr 27 (Transplant out) Aug 12
Winter Squash Mar 30 Apr 27 (Transplant out) -
Pumpkins Mar 30 Apr 27 (Transplant out) -
Green Beans - Apr 20 (Direct sow) Aug 9
Sweet Corn - Apr 27 (Direct sow) -
Melons Mar 30 May 4 (Transplant out) -
Watermelon Mar 30 May 4 (Transplant out) -
Okra - May 4 (Direct sow) -
Eggplant Feb 23 May 4 (Transplant out) -
Lettuce Mar 23 Mar 23 (Transplant out) Aug 14
Spinach - Mar 9 (Direct sow) Aug 19
Kale Mar 9 Mar 30 (Transplant out) Aug 9
Peas - Mar 9 (Direct sow) Aug 4
Carrots - Mar 30 (Direct sow) Jul 25
Beets - Mar 23 (Direct sow) Aug 9
Radishes - Mar 23 (Direct sow) Sep 5
Broccoli Mar 9 Apr 6 (Transplant out) Jul 30
Cauliflower Mar 9 Apr 6 (Transplant out) Jul 25
Cabbage Mar 9 Mar 30 (Transplant out) Jul 25
Onions Feb 9 Mar 23 (Transplant out) -
Potatoes - Apr 6 (Direct sow) -
Swiss Chard Mar 23 Apr 6 (Transplant out) Aug 9
Sweet Potatoes - May 11 (Direct sow) -
Brussels Sprouts Mar 9 Apr 6 (Transplant out) Jun 25
Celery Feb 9 Apr 27 (Transplant out) -
Leeks Feb 9 Apr 6 (Transplant out) Jun 5
Turnips - Apr 6 (Direct sow) Aug 14
Rutabaga - Apr 20 (Direct sow) Jun 30
Parsnips - Apr 6 (Direct sow) Jun 5
Kohlrabi Mar 23 Apr 6 (Transplant out) Aug 9
Collard Greens Mar 9 Apr 6 (Transplant out) Jul 30
Mustard Greens - Apr 6 (Direct sow) Aug 19
Arugula - Apr 6 (Direct sow) Aug 24
Bok Choy Mar 23 Apr 6 (Transplant out) Aug 14
Green Onions - Apr 6 (Direct sow) Aug 4
Tomatillos Mar 9 Apr 27 (Transplant out) -
Fennel Mar 23 Apr 6 (Transplant out) Jul 15
Popcorn Apr 20 May 4 (Transplant out) -
Black-Eyed Peas Apr 20 May 4 (Transplant out) Jul 15
Lima Beans Apr 20 May 4 (Transplant out) -
Edamame Apr 20 May 4 (Transplant out) -
Peanuts Apr 20 May 4 (Transplant out) -
Globe Artichoke Feb 23 Apr 6 (Transplant out) Jul 5
Horseradish Apr 20 Apr 6 (Transplant out) -
Ground Cherries Mar 9 May 4 (Transplant out) -
Radicchio Mar 16 Apr 6 (Transplant out) Jul 25
Endive Mar 16 Apr 6 (Transplant out) Jul 5
Watercress Mar 30 Apr 6 (Transplant out) Aug 4
Sorrel Mar 9 Mar 30 (Transplant out) Aug 4
Sunchokes Apr 20 Apr 6 (Transplant out) -
Malabar Spinach Mar 9 May 4 (Transplant out) -
Amaranth Greens Mar 30 May 4 (Transplant out) Aug 19
Luffa Gourd Mar 9 May 4 (Transplant out) -
New Zealand Spinach Mar 23 May 4 (Transplant out) -
Fava Beans Apr 20 Mar 23 (Transplant out) Jul 10
Chayote Mar 23 May 4 (Transplant out) -
Corn Salad Apr 20 Mar 23 (Transplant out) Aug 4
Bitter Melon Mar 23 May 4 (Transplant out) -
Cardoon Mar 9 Apr 20 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 9 Apr 27 (Transplant out) -
Cilantro - Apr 6 (Direct sow) Aug 14
Parsley Feb 23 May 4 (Transplant out) Jul 20
Dill - Apr 27 (Direct sow) Aug 4
Lemon Balm Mar 9 Apr 20 (Transplant out) -
Borage Apr 20 Apr 20 (Transplant out) Aug 9
Chervil Apr 20 Mar 30 (Transplant out) Aug 9
Lemongrass Feb 23 May 4 (Transplant out) -
Summer Savory Mar 9 Apr 20 (Transplant out) -
Marjoram Mar 9 Apr 27 (Transplant out) -
Lovage Mar 9 Apr 20 (Transplant out) Jul 5
Anise Hyssop Feb 23 Apr 20 (Transplant out) -
Shiso Mar 9 Apr 27 (Transplant out) -
Stevia Feb 23 May 4 (Transplant out) -
Chamomile Mar 9 Apr 6 (Transplant out) Jul 30
Tarragon Apr 20 Apr 20 (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 Lacon, Il, 10.5 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 61562 Local weather →