Harman US

Planting Calendar for ZIP 66091

Based on your local frost dates - last spring frost around Apr 17, first fall frost around Oct 22 - here is when to plant 79 common crops near ZIP 66091.

Last spring frost
Apr 17
First fall frost
Oct 22
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 6 Apr 24 (Transplant out) -
Peppers Feb 20 May 1 (Transplant out) -
Cucumbers Mar 27 Apr 24 (Transplant out) Aug 14
Zucchini Mar 27 Apr 24 (Transplant out) Aug 19
Summer Squash Mar 27 Apr 24 (Transplant out) Aug 17
Winter Squash Mar 27 Apr 24 (Transplant out) -
Pumpkins Mar 27 Apr 24 (Transplant out) -
Green Beans - Apr 17 (Direct sow) Aug 14
Sweet Corn - Apr 24 (Direct sow) -
Melons Mar 27 May 1 (Transplant out) -
Watermelon Mar 27 May 1 (Transplant out) -
Okra - May 1 (Direct sow) -
Eggplant Feb 20 May 1 (Transplant out) -
Lettuce Mar 20 Mar 20 (Transplant out) Aug 19
Spinach - Mar 6 (Direct sow) Aug 24
Kale Mar 6 Mar 27 (Transplant out) Aug 14
Peas - Mar 6 (Direct sow) Aug 9
Carrots - Mar 27 (Direct sow) Jul 30
Beets - Mar 20 (Direct sow) Aug 14
Radishes - Mar 20 (Direct sow) Sep 10
Broccoli Mar 6 Apr 3 (Transplant out) Aug 4
Cauliflower Mar 6 Apr 3 (Transplant out) Jul 30
Cabbage Mar 6 Mar 27 (Transplant out) Jul 30
Onions Feb 6 Mar 20 (Transplant out) -
Potatoes - Apr 3 (Direct sow) -
Swiss Chard Mar 20 Apr 3 (Transplant out) Aug 14
Sweet Potatoes - May 8 (Direct sow) -
Brussels Sprouts Mar 6 Apr 3 (Transplant out) Jun 30
Celery Feb 6 Apr 24 (Transplant out) -
Leeks Feb 6 Apr 3 (Transplant out) Jun 10
Turnips - Apr 3 (Direct sow) Aug 19
Rutabaga - Apr 17 (Direct sow) Jul 5
Parsnips - Apr 3 (Direct sow) Jun 10
Kohlrabi Mar 20 Apr 3 (Transplant out) Aug 14
Collard Greens Mar 6 Apr 3 (Transplant out) Aug 4
Mustard Greens - Apr 3 (Direct sow) Aug 24
Arugula - Apr 3 (Direct sow) Aug 29
Bok Choy Mar 20 Apr 3 (Transplant out) Aug 19
Green Onions - Apr 3 (Direct sow) Aug 9
Tomatillos Mar 6 Apr 24 (Transplant out) -
Fennel Mar 20 Apr 3 (Transplant out) Jul 20
Popcorn Apr 17 May 1 (Transplant out) -
Black-Eyed Peas Apr 17 May 1 (Transplant out) Jul 20
Lima Beans Apr 17 May 1 (Transplant out) -
Edamame Apr 17 May 1 (Transplant out) -
Peanuts Apr 17 May 1 (Transplant out) -
Globe Artichoke Feb 20 Apr 3 (Transplant out) Jul 10
Horseradish Apr 17 Apr 3 (Transplant out) -
Ground Cherries Mar 6 May 1 (Transplant out) -
Radicchio Mar 13 Apr 3 (Transplant out) Jul 30
Endive Mar 13 Apr 3 (Transplant out) Jul 10
Watercress Mar 27 Apr 3 (Transplant out) Aug 9
Sorrel Mar 6 Mar 27 (Transplant out) Aug 9
Sunchokes Apr 17 Apr 3 (Transplant out) -
Malabar Spinach Mar 6 May 1 (Transplant out) -
Amaranth Greens Mar 27 May 1 (Transplant out) Aug 24
Luffa Gourd Mar 6 May 1 (Transplant out) -
New Zealand Spinach Mar 20 May 1 (Transplant out) -
Fava Beans Apr 17 Mar 20 (Transplant out) Jul 15
Chayote Mar 20 May 1 (Transplant out) -
Corn Salad Apr 17 Mar 20 (Transplant out) Aug 9
Bitter Melon Mar 20 May 1 (Transplant out) -
Cardoon Mar 6 Apr 17 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 6 Apr 24 (Transplant out) -
Cilantro - Apr 3 (Direct sow) Aug 19
Parsley Feb 20 May 1 (Transplant out) Jul 25
Dill - Apr 24 (Direct sow) Aug 9
Lemon Balm Mar 6 Apr 17 (Transplant out) -
Borage Apr 17 Apr 17 (Transplant out) Aug 14
Chervil Apr 17 Mar 27 (Transplant out) Aug 14
Lemongrass Feb 20 May 1 (Transplant out) -
Summer Savory Mar 6 Apr 17 (Transplant out) -
Marjoram Mar 6 Apr 24 (Transplant out) -
Lovage Mar 6 Apr 17 (Transplant out) Jul 10
Anise Hyssop Feb 20 Apr 17 (Transplant out) -
Shiso Mar 6 Apr 24 (Transplant out) -
Stevia Feb 20 May 1 (Transplant out) -
Chamomile Mar 6 Apr 3 (Transplant out) Aug 4
Tarragon Apr 17 Apr 17 (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 Garnett 1 E, Ks, 9.6 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 66091 Local weather →