Harman US

Planting Calendar for ZIP 66938

Based on your local frost dates - last spring frost around Apr 18, first fall frost around Oct 19 - here is when to plant 79 common crops near ZIP 66938.

Last spring frost
Apr 18
First fall frost
Oct 19
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 7 Apr 25 (Transplant out) -
Peppers Feb 21 May 2 (Transplant out) -
Cucumbers Mar 28 Apr 25 (Transplant out) Aug 11
Zucchini Mar 28 Apr 25 (Transplant out) Aug 16
Summer Squash Mar 28 Apr 25 (Transplant out) Aug 14
Winter Squash Mar 28 Apr 25 (Transplant out) -
Pumpkins Mar 28 Apr 25 (Transplant out) -
Green Beans - Apr 18 (Direct sow) Aug 11
Sweet Corn - Apr 25 (Direct sow) -
Melons Mar 28 May 2 (Transplant out) -
Watermelon Mar 28 May 2 (Transplant out) -
Okra - May 2 (Direct sow) -
Eggplant Feb 21 May 2 (Transplant out) -
Lettuce Mar 21 Mar 21 (Transplant out) Aug 16
Spinach - Mar 7 (Direct sow) Aug 21
Kale Mar 7 Mar 28 (Transplant out) Aug 11
Peas - Mar 7 (Direct sow) Aug 6
Carrots - Mar 28 (Direct sow) Jul 27
Beets - Mar 21 (Direct sow) Aug 11
Radishes - Mar 21 (Direct sow) Sep 7
Broccoli Mar 7 Apr 4 (Transplant out) Aug 1
Cauliflower Mar 7 Apr 4 (Transplant out) Jul 27
Cabbage Mar 7 Mar 28 (Transplant out) Jul 27
Onions Feb 7 Mar 21 (Transplant out) -
Potatoes - Apr 4 (Direct sow) -
Swiss Chard Mar 21 Apr 4 (Transplant out) Aug 11
Sweet Potatoes - May 9 (Direct sow) -
Brussels Sprouts Mar 7 Apr 4 (Transplant out) Jun 27
Celery Feb 7 Apr 25 (Transplant out) -
Leeks Feb 7 Apr 4 (Transplant out) Jun 7
Turnips - Apr 4 (Direct sow) Aug 16
Rutabaga - Apr 18 (Direct sow) Jul 2
Parsnips - Apr 4 (Direct sow) Jun 7
Kohlrabi Mar 21 Apr 4 (Transplant out) Aug 11
Collard Greens Mar 7 Apr 4 (Transplant out) Aug 1
Mustard Greens - Apr 4 (Direct sow) Aug 21
Arugula - Apr 4 (Direct sow) Aug 26
Bok Choy Mar 21 Apr 4 (Transplant out) Aug 16
Green Onions - Apr 4 (Direct sow) Aug 6
Tomatillos Mar 7 Apr 25 (Transplant out) -
Fennel Mar 21 Apr 4 (Transplant out) Jul 17
Popcorn Apr 18 May 2 (Transplant out) -
Black-Eyed Peas Apr 18 May 2 (Transplant out) Jul 17
Lima Beans Apr 18 May 2 (Transplant out) -
Edamame Apr 18 May 2 (Transplant out) -
Peanuts Apr 18 May 2 (Transplant out) -
Globe Artichoke Feb 21 Apr 4 (Transplant out) Jul 7
Horseradish Apr 18 Apr 4 (Transplant out) -
Ground Cherries Mar 7 May 2 (Transplant out) -
Radicchio Mar 14 Apr 4 (Transplant out) Jul 27
Endive Mar 14 Apr 4 (Transplant out) Jul 7
Watercress Mar 28 Apr 4 (Transplant out) Aug 6
Sorrel Mar 7 Mar 28 (Transplant out) Aug 6
Sunchokes Apr 18 Apr 4 (Transplant out) -
Malabar Spinach Mar 7 May 2 (Transplant out) -
Amaranth Greens Mar 28 May 2 (Transplant out) Aug 21
Luffa Gourd Mar 7 May 2 (Transplant out) -
New Zealand Spinach Mar 21 May 2 (Transplant out) -
Fava Beans Apr 18 Mar 21 (Transplant out) Jul 12
Chayote Mar 21 May 2 (Transplant out) -
Corn Salad Apr 18 Mar 21 (Transplant out) Aug 6
Bitter Melon Mar 21 May 2 (Transplant out) -
Cardoon Mar 7 Apr 18 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 7 Apr 25 (Transplant out) -
Cilantro - Apr 4 (Direct sow) Aug 16
Parsley Feb 21 May 2 (Transplant out) Jul 22
Dill - Apr 25 (Direct sow) Aug 6
Lemon Balm Mar 7 Apr 18 (Transplant out) -
Borage Apr 18 Apr 18 (Transplant out) Aug 11
Chervil Apr 18 Mar 28 (Transplant out) Aug 11
Lemongrass Feb 21 May 2 (Transplant out) -
Summer Savory Mar 7 Apr 18 (Transplant out) -
Marjoram Mar 7 Apr 25 (Transplant out) -
Lovage Mar 7 Apr 18 (Transplant out) Jul 7
Anise Hyssop Feb 21 Apr 18 (Transplant out) -
Shiso Mar 7 Apr 25 (Transplant out) -
Stevia Feb 21 May 2 (Transplant out) -
Chamomile Mar 7 Apr 4 (Transplant out) Aug 1
Tarragon Apr 18 Apr 18 (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 Concordia Muni Ap, Ks, 11.3 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 66938 Local weather →