Harman US

Planting Calendar for ZIP 62028

Based on your local frost dates - last spring frost around Apr 5, first fall frost around Oct 27 - here is when to plant 79 common crops near ZIP 62028.

Last spring frost
Apr 5
First fall frost
Oct 27
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Feb 22 Apr 12 (Transplant out) -
Peppers Feb 8 Apr 19 (Transplant out) -
Cucumbers Mar 15 Apr 12 (Transplant out) Aug 19
Zucchini Mar 15 Apr 12 (Transplant out) Aug 24
Summer Squash Mar 15 Apr 12 (Transplant out) Aug 22
Winter Squash Mar 15 Apr 12 (Transplant out) -
Pumpkins Mar 15 Apr 12 (Transplant out) -
Green Beans - Apr 5 (Direct sow) Aug 19
Sweet Corn - Apr 12 (Direct sow) -
Melons Mar 15 Apr 19 (Transplant out) -
Watermelon Mar 15 Apr 19 (Transplant out) -
Okra - Apr 19 (Direct sow) -
Eggplant Feb 8 Apr 19 (Transplant out) -
Lettuce Mar 8 Mar 8 (Transplant out) Aug 24
Spinach - Feb 22 (Direct sow) Aug 29
Kale Feb 22 Mar 15 (Transplant out) Aug 19
Peas - Feb 22 (Direct sow) Aug 14
Carrots - Mar 15 (Direct sow) Aug 4
Beets - Mar 8 (Direct sow) Aug 19
Radishes - Mar 8 (Direct sow) Sep 15
Broccoli Feb 22 Mar 22 (Transplant out) Aug 9
Cauliflower Feb 22 Mar 22 (Transplant out) Aug 4
Cabbage Feb 22 Mar 15 (Transplant out) Aug 4
Onions Jan 25 Mar 8 (Transplant out) -
Potatoes - Mar 22 (Direct sow) -
Swiss Chard Mar 8 Mar 22 (Transplant out) Aug 19
Sweet Potatoes - Apr 26 (Direct sow) -
Brussels Sprouts Feb 22 Mar 22 (Transplant out) Jul 5
Celery Jan 25 Apr 12 (Transplant out) -
Leeks Jan 25 Mar 22 (Transplant out) Jun 15
Turnips - Mar 22 (Direct sow) Aug 24
Rutabaga - Apr 5 (Direct sow) Jul 10
Parsnips - Mar 22 (Direct sow) Jun 15
Kohlrabi Mar 8 Mar 22 (Transplant out) Aug 19
Collard Greens Feb 22 Mar 22 (Transplant out) Aug 9
Mustard Greens - Mar 22 (Direct sow) Aug 29
Arugula - Mar 22 (Direct sow) Sep 3
Bok Choy Mar 8 Mar 22 (Transplant out) Aug 24
Green Onions - Mar 22 (Direct sow) Aug 14
Tomatillos Feb 22 Apr 12 (Transplant out) -
Fennel Mar 8 Mar 22 (Transplant out) Jul 25
Popcorn Apr 5 Apr 19 (Transplant out) -
Black-Eyed Peas Apr 5 Apr 19 (Transplant out) Jul 25
Lima Beans Apr 5 Apr 19 (Transplant out) -
Edamame Apr 5 Apr 19 (Transplant out) -
Peanuts Apr 5 Apr 19 (Transplant out) -
Globe Artichoke Feb 8 Mar 22 (Transplant out) Jul 15
Horseradish Apr 5 Mar 22 (Transplant out) -
Ground Cherries Feb 22 Apr 19 (Transplant out) -
Radicchio Mar 1 Mar 22 (Transplant out) Aug 4
Endive Mar 1 Mar 22 (Transplant out) Jul 15
Watercress Mar 15 Mar 22 (Transplant out) Aug 14
Sorrel Feb 22 Mar 15 (Transplant out) Aug 14
Sunchokes Apr 5 Mar 22 (Transplant out) -
Malabar Spinach Feb 22 Apr 19 (Transplant out) -
Amaranth Greens Mar 15 Apr 19 (Transplant out) Aug 29
Luffa Gourd Feb 22 Apr 19 (Transplant out) -
New Zealand Spinach Mar 8 Apr 19 (Transplant out) -
Fava Beans Apr 5 Mar 8 (Transplant out) Jul 20
Chayote Mar 8 Apr 19 (Transplant out) -
Corn Salad Apr 5 Mar 8 (Transplant out) Aug 14
Bitter Melon Mar 8 Apr 19 (Transplant out) -
Cardoon Feb 22 Apr 5 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Feb 22 Apr 12 (Transplant out) -
Cilantro - Mar 22 (Direct sow) Aug 24
Parsley Feb 8 Apr 19 (Transplant out) Jul 30
Dill - Apr 12 (Direct sow) Aug 14
Lemon Balm Feb 22 Apr 5 (Transplant out) -
Borage Apr 5 Apr 5 (Transplant out) Aug 19
Chervil Apr 5 Mar 15 (Transplant out) Aug 19
Lemongrass Feb 8 Apr 19 (Transplant out) -
Summer Savory Feb 22 Apr 5 (Transplant out) -
Marjoram Feb 22 Apr 12 (Transplant out) -
Lovage Feb 22 Apr 5 (Transplant out) Jul 15
Anise Hyssop Feb 8 Apr 5 (Transplant out) -
Shiso Feb 22 Apr 12 (Transplant out) -
Stevia Feb 8 Apr 19 (Transplant out) -
Chamomile Feb 22 Mar 22 (Transplant out) Aug 9
Tarragon Apr 5 Apr 5 (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 St Charles Co Ap, Mo, 4.4 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 62028 Local weather →