Harman US

Planting Calendar for ZIP 66857

Based on your local frost dates - last spring frost around Apr 11, first fall frost around Oct 26 - here is when to plant 79 common crops near ZIP 66857.

Last spring frost
Apr 11
First fall frost
Oct 26
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Feb 28 Apr 18 (Transplant out) -
Peppers Feb 14 Apr 25 (Transplant out) -
Cucumbers Mar 21 Apr 18 (Transplant out) Aug 18
Zucchini Mar 21 Apr 18 (Transplant out) Aug 23
Summer Squash Mar 21 Apr 18 (Transplant out) Aug 21
Winter Squash Mar 21 Apr 18 (Transplant out) -
Pumpkins Mar 21 Apr 18 (Transplant out) -
Green Beans - Apr 11 (Direct sow) Aug 18
Sweet Corn - Apr 18 (Direct sow) -
Melons Mar 21 Apr 25 (Transplant out) -
Watermelon Mar 21 Apr 25 (Transplant out) -
Okra - Apr 25 (Direct sow) -
Eggplant Feb 14 Apr 25 (Transplant out) -
Lettuce Mar 14 Mar 14 (Transplant out) Aug 23
Spinach - Feb 28 (Direct sow) Aug 28
Kale Feb 28 Mar 21 (Transplant out) Aug 18
Peas - Feb 28 (Direct sow) Aug 13
Carrots - Mar 21 (Direct sow) Aug 3
Beets - Mar 14 (Direct sow) Aug 18
Radishes - Mar 14 (Direct sow) Sep 14
Broccoli Feb 28 Mar 28 (Transplant out) Aug 8
Cauliflower Feb 28 Mar 28 (Transplant out) Aug 3
Cabbage Feb 28 Mar 21 (Transplant out) Aug 3
Onions Jan 31 Mar 14 (Transplant out) -
Potatoes - Mar 28 (Direct sow) -
Swiss Chard Mar 14 Mar 28 (Transplant out) Aug 18
Sweet Potatoes - May 2 (Direct sow) -
Brussels Sprouts Feb 28 Mar 28 (Transplant out) Jul 4
Celery Jan 31 Apr 18 (Transplant out) -
Leeks Jan 31 Mar 28 (Transplant out) Jun 14
Turnips - Mar 28 (Direct sow) Aug 23
Rutabaga - Apr 11 (Direct sow) Jul 9
Parsnips - Mar 28 (Direct sow) Jun 14
Kohlrabi Mar 14 Mar 28 (Transplant out) Aug 18
Collard Greens Feb 28 Mar 28 (Transplant out) Aug 8
Mustard Greens - Mar 28 (Direct sow) Aug 28
Arugula - Mar 28 (Direct sow) Sep 2
Bok Choy Mar 14 Mar 28 (Transplant out) Aug 23
Green Onions - Mar 28 (Direct sow) Aug 13
Tomatillos Feb 28 Apr 18 (Transplant out) -
Fennel Mar 14 Mar 28 (Transplant out) Jul 24
Popcorn Apr 11 Apr 25 (Transplant out) -
Black-Eyed Peas Apr 11 Apr 25 (Transplant out) Jul 24
Lima Beans Apr 11 Apr 25 (Transplant out) -
Edamame Apr 11 Apr 25 (Transplant out) -
Peanuts Apr 11 Apr 25 (Transplant out) -
Globe Artichoke Feb 14 Mar 28 (Transplant out) Jul 14
Horseradish Apr 11 Mar 28 (Transplant out) -
Ground Cherries Feb 28 Apr 25 (Transplant out) -
Radicchio Mar 7 Mar 28 (Transplant out) Aug 3
Endive Mar 7 Mar 28 (Transplant out) Jul 14
Watercress Mar 21 Mar 28 (Transplant out) Aug 13
Sorrel Feb 28 Mar 21 (Transplant out) Aug 13
Sunchokes Apr 11 Mar 28 (Transplant out) -
Malabar Spinach Feb 28 Apr 25 (Transplant out) -
Amaranth Greens Mar 21 Apr 25 (Transplant out) Aug 28
Luffa Gourd Feb 28 Apr 25 (Transplant out) -
New Zealand Spinach Mar 14 Apr 25 (Transplant out) -
Fava Beans Apr 11 Mar 14 (Transplant out) Jul 19
Chayote Mar 14 Apr 25 (Transplant out) -
Corn Salad Apr 11 Mar 14 (Transplant out) Aug 13
Bitter Melon Mar 14 Apr 25 (Transplant out) -
Cardoon Feb 28 Apr 11 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Feb 28 Apr 18 (Transplant out) -
Cilantro - Mar 28 (Direct sow) Aug 23
Parsley Feb 14 Apr 25 (Transplant out) Jul 29
Dill - Apr 18 (Direct sow) Aug 13
Lemon Balm Feb 28 Apr 11 (Transplant out) -
Borage Apr 11 Apr 11 (Transplant out) Aug 18
Chervil Apr 11 Mar 21 (Transplant out) Aug 18
Lemongrass Feb 14 Apr 25 (Transplant out) -
Summer Savory Feb 28 Apr 11 (Transplant out) -
Marjoram Feb 28 Apr 18 (Transplant out) -
Lovage Feb 28 Apr 11 (Transplant out) Jul 14
Anise Hyssop Feb 14 Apr 11 (Transplant out) -
Shiso Feb 28 Apr 18 (Transplant out) -
Stevia Feb 14 Apr 25 (Transplant out) -
Chamomile Feb 28 Mar 28 (Transplant out) Aug 8
Tarragon Apr 11 Apr 11 (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 John Redmond Lake, Ks, 12.2 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 66857 Local weather →