Harman US

Planting Calendar for ZIP 68355

Based on your local frost dates - last spring frost around Apr 18, first fall frost around Oct 17 - here is when to plant 79 common crops near ZIP 68355.

Last spring frost
Apr 18
First fall frost
Oct 17
Hardiness zone
6a

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 9
Zucchini Mar 28 Apr 25 (Transplant out) Aug 14
Summer Squash Mar 28 Apr 25 (Transplant out) Aug 12
Winter Squash Mar 28 Apr 25 (Transplant out) -
Pumpkins Mar 28 Apr 25 (Transplant out) -
Green Beans - Apr 18 (Direct sow) Aug 9
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 14
Spinach - Mar 7 (Direct sow) Aug 19
Kale Mar 7 Mar 28 (Transplant out) Aug 9
Peas - Mar 7 (Direct sow) Aug 4
Carrots - Mar 28 (Direct sow) Jul 25
Beets - Mar 21 (Direct sow) Aug 9
Radishes - Mar 21 (Direct sow) Sep 5
Broccoli Mar 7 Apr 4 (Transplant out) Jul 30
Cauliflower Mar 7 Apr 4 (Transplant out) Jul 25
Cabbage Mar 7 Mar 28 (Transplant out) Jul 25
Onions Feb 7 Mar 21 (Transplant out) -
Potatoes - Apr 4 (Direct sow) -
Swiss Chard Mar 21 Apr 4 (Transplant out) Aug 9
Sweet Potatoes - May 9 (Direct sow) -
Brussels Sprouts Mar 7 Apr 4 (Transplant out) Jun 25
Celery Feb 7 Apr 25 (Transplant out) -
Leeks Feb 7 Apr 4 (Transplant out) Jun 5
Turnips - Apr 4 (Direct sow) Aug 14
Rutabaga - Apr 18 (Direct sow) Jun 30
Parsnips - Apr 4 (Direct sow) Jun 5
Kohlrabi Mar 21 Apr 4 (Transplant out) Aug 9
Collard Greens Mar 7 Apr 4 (Transplant out) Jul 30
Mustard Greens - Apr 4 (Direct sow) Aug 19
Arugula - Apr 4 (Direct sow) Aug 24
Bok Choy Mar 21 Apr 4 (Transplant out) Aug 14
Green Onions - Apr 4 (Direct sow) Aug 4
Tomatillos Mar 7 Apr 25 (Transplant out) -
Fennel Mar 21 Apr 4 (Transplant out) Jul 15
Popcorn Apr 18 May 2 (Transplant out) -
Black-Eyed Peas Apr 18 May 2 (Transplant out) Jul 15
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 5
Horseradish Apr 18 Apr 4 (Transplant out) -
Ground Cherries Mar 7 May 2 (Transplant out) -
Radicchio Mar 14 Apr 4 (Transplant out) Jul 25
Endive Mar 14 Apr 4 (Transplant out) Jul 5
Watercress Mar 28 Apr 4 (Transplant out) Aug 4
Sorrel Mar 7 Mar 28 (Transplant out) Aug 4
Sunchokes Apr 18 Apr 4 (Transplant out) -
Malabar Spinach Mar 7 May 2 (Transplant out) -
Amaranth Greens Mar 28 May 2 (Transplant out) Aug 19
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 10
Chayote Mar 21 May 2 (Transplant out) -
Corn Salad Apr 18 Mar 21 (Transplant out) Aug 4
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 14
Parsley Feb 21 May 2 (Transplant out) Jul 20
Dill - Apr 25 (Direct sow) Aug 4
Lemon Balm Mar 7 Apr 18 (Transplant out) -
Borage Apr 18 Apr 18 (Transplant out) Aug 9
Chervil Apr 18 Mar 28 (Transplant out) Aug 9
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 5
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) Jul 30
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 Falls City Brenner Fld, Ne, 3.2 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 68355 Local weather →