Harman US

Planting Calendar for ZIP 68417

Based on your local frost dates - last spring frost around Apr 25, first fall frost around Oct 11 - here is when to plant 79 common crops near ZIP 68417.

Last spring frost
Apr 25
First fall frost
Oct 11
Hardiness zone
6a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 14 May 2 (Transplant out) -
Peppers Feb 28 May 9 (Transplant out) -
Cucumbers Apr 4 May 2 (Transplant out) Aug 3
Zucchini Apr 4 May 2 (Transplant out) Aug 8
Summer Squash Apr 4 May 2 (Transplant out) Aug 6
Winter Squash Apr 4 May 2 (Transplant out) -
Pumpkins Apr 4 May 2 (Transplant out) -
Green Beans - Apr 25 (Direct sow) Aug 3
Sweet Corn - May 2 (Direct sow) -
Melons Apr 4 May 9 (Transplant out) -
Watermelon Apr 4 May 9 (Transplant out) -
Okra - May 9 (Direct sow) -
Eggplant Feb 28 May 9 (Transplant out) -
Lettuce Mar 28 Mar 28 (Transplant out) Aug 8
Spinach - Mar 14 (Direct sow) Aug 13
Kale Mar 14 Apr 4 (Transplant out) Aug 3
Peas - Mar 14 (Direct sow) Jul 29
Carrots - Apr 4 (Direct sow) Jul 19
Beets - Mar 28 (Direct sow) Aug 3
Radishes - Mar 28 (Direct sow) Aug 30
Broccoli Mar 14 Apr 11 (Transplant out) Jul 24
Cauliflower Mar 14 Apr 11 (Transplant out) Jul 19
Cabbage Mar 14 Apr 4 (Transplant out) Jul 19
Onions Feb 14 Mar 28 (Transplant out) -
Potatoes - Apr 11 (Direct sow) -
Swiss Chard Mar 28 Apr 11 (Transplant out) Aug 3
Sweet Potatoes - May 16 (Direct sow) -
Brussels Sprouts Mar 14 Apr 11 (Transplant out) Jun 19
Celery Feb 14 May 2 (Transplant out) -
Leeks Feb 14 Apr 11 (Transplant out) May 30
Turnips - Apr 11 (Direct sow) Aug 8
Rutabaga - Apr 25 (Direct sow) Jun 24
Parsnips - Apr 11 (Direct sow) May 30
Kohlrabi Mar 28 Apr 11 (Transplant out) Aug 3
Collard Greens Mar 14 Apr 11 (Transplant out) Jul 24
Mustard Greens - Apr 11 (Direct sow) Aug 13
Arugula - Apr 11 (Direct sow) Aug 18
Bok Choy Mar 28 Apr 11 (Transplant out) Aug 8
Green Onions - Apr 11 (Direct sow) Jul 29
Tomatillos Mar 14 May 2 (Transplant out) -
Fennel Mar 28 Apr 11 (Transplant out) Jul 9
Popcorn Apr 25 May 9 (Transplant out) -
Black-Eyed Peas Apr 25 May 9 (Transplant out) Jul 9
Lima Beans Apr 25 May 9 (Transplant out) -
Edamame Apr 25 May 9 (Transplant out) -
Peanuts Apr 25 May 9 (Transplant out) -
Globe Artichoke Feb 28 Apr 11 (Transplant out) Jun 29
Horseradish Apr 25 Apr 11 (Transplant out) -
Ground Cherries Mar 14 May 9 (Transplant out) -
Radicchio Mar 21 Apr 11 (Transplant out) Jul 19
Endive Mar 21 Apr 11 (Transplant out) Jun 29
Watercress Apr 4 Apr 11 (Transplant out) Jul 29
Sorrel Mar 14 Apr 4 (Transplant out) Jul 29
Sunchokes Apr 25 Apr 11 (Transplant out) -
Malabar Spinach Mar 14 May 9 (Transplant out) -
Amaranth Greens Apr 4 May 9 (Transplant out) Aug 13
Luffa Gourd Mar 14 May 9 (Transplant out) -
New Zealand Spinach Mar 28 May 9 (Transplant out) -
Fava Beans Apr 25 Mar 28 (Transplant out) Jul 4
Chayote Mar 28 May 9 (Transplant out) -
Corn Salad Apr 25 Mar 28 (Transplant out) Jul 29
Bitter Melon Mar 28 May 9 (Transplant out) -
Cardoon Mar 14 Apr 25 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 14 May 2 (Transplant out) -
Cilantro - Apr 11 (Direct sow) Aug 8
Parsley Feb 28 May 9 (Transplant out) Jul 14
Dill - May 2 (Direct sow) Jul 29
Lemon Balm Mar 14 Apr 25 (Transplant out) -
Borage Apr 25 Apr 25 (Transplant out) Aug 3
Chervil Apr 25 Apr 4 (Transplant out) Aug 3
Lemongrass Feb 28 May 9 (Transplant out) -
Summer Savory Mar 14 Apr 25 (Transplant out) -
Marjoram Mar 14 May 2 (Transplant out) -
Lovage Mar 14 Apr 25 (Transplant out) Jun 29
Anise Hyssop Feb 28 Apr 25 (Transplant out) -
Shiso Mar 14 May 2 (Transplant out) -
Stevia Feb 28 May 9 (Transplant out) -
Chamomile Mar 14 Apr 11 (Transplant out) Jul 24
Tarragon Apr 25 Apr 25 (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 Syracuse, Ne, 6.8 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

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