Harman US

Planting Calendar for ZIP 68333

Based on your local frost dates - last spring frost around Apr 23, first fall frost around Oct 12 - here is when to plant 79 common crops near ZIP 68333.

Last spring frost
Apr 23
First fall frost
Oct 12
Hardiness zone
6a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 12 Apr 30 (Transplant out) -
Peppers Feb 26 May 7 (Transplant out) -
Cucumbers Apr 2 Apr 30 (Transplant out) Aug 4
Zucchini Apr 2 Apr 30 (Transplant out) Aug 9
Summer Squash Apr 2 Apr 30 (Transplant out) Aug 7
Winter Squash Apr 2 Apr 30 (Transplant out) -
Pumpkins Apr 2 Apr 30 (Transplant out) -
Green Beans - Apr 23 (Direct sow) Aug 4
Sweet Corn - Apr 30 (Direct sow) -
Melons Apr 2 May 7 (Transplant out) -
Watermelon Apr 2 May 7 (Transplant out) -
Okra - May 7 (Direct sow) -
Eggplant Feb 26 May 7 (Transplant out) -
Lettuce Mar 26 Mar 26 (Transplant out) Aug 9
Spinach - Mar 12 (Direct sow) Aug 14
Kale Mar 12 Apr 2 (Transplant out) Aug 4
Peas - Mar 12 (Direct sow) Jul 30
Carrots - Apr 2 (Direct sow) Jul 20
Beets - Mar 26 (Direct sow) Aug 4
Radishes - Mar 26 (Direct sow) Aug 31
Broccoli Mar 12 Apr 9 (Transplant out) Jul 25
Cauliflower Mar 12 Apr 9 (Transplant out) Jul 20
Cabbage Mar 12 Apr 2 (Transplant out) Jul 20
Onions Feb 12 Mar 26 (Transplant out) -
Potatoes - Apr 9 (Direct sow) -
Swiss Chard Mar 26 Apr 9 (Transplant out) Aug 4
Sweet Potatoes - May 14 (Direct sow) -
Brussels Sprouts Mar 12 Apr 9 (Transplant out) Jun 20
Celery Feb 12 Apr 30 (Transplant out) -
Leeks Feb 12 Apr 9 (Transplant out) May 31
Turnips - Apr 9 (Direct sow) Aug 9
Rutabaga - Apr 23 (Direct sow) Jun 25
Parsnips - Apr 9 (Direct sow) May 31
Kohlrabi Mar 26 Apr 9 (Transplant out) Aug 4
Collard Greens Mar 12 Apr 9 (Transplant out) Jul 25
Mustard Greens - Apr 9 (Direct sow) Aug 14
Arugula - Apr 9 (Direct sow) Aug 19
Bok Choy Mar 26 Apr 9 (Transplant out) Aug 9
Green Onions - Apr 9 (Direct sow) Jul 30
Tomatillos Mar 12 Apr 30 (Transplant out) -
Fennel Mar 26 Apr 9 (Transplant out) Jul 10
Popcorn Apr 23 May 7 (Transplant out) -
Black-Eyed Peas Apr 23 May 7 (Transplant out) Jul 10
Lima Beans Apr 23 May 7 (Transplant out) -
Edamame Apr 23 May 7 (Transplant out) -
Peanuts Apr 23 May 7 (Transplant out) -
Globe Artichoke Feb 26 Apr 9 (Transplant out) Jun 30
Horseradish Apr 23 Apr 9 (Transplant out) -
Ground Cherries Mar 12 May 7 (Transplant out) -
Radicchio Mar 19 Apr 9 (Transplant out) Jul 20
Endive Mar 19 Apr 9 (Transplant out) Jun 30
Watercress Apr 2 Apr 9 (Transplant out) Jul 30
Sorrel Mar 12 Apr 2 (Transplant out) Jul 30
Sunchokes Apr 23 Apr 9 (Transplant out) -
Malabar Spinach Mar 12 May 7 (Transplant out) -
Amaranth Greens Apr 2 May 7 (Transplant out) Aug 14
Luffa Gourd Mar 12 May 7 (Transplant out) -
New Zealand Spinach Mar 26 May 7 (Transplant out) -
Fava Beans Apr 23 Mar 26 (Transplant out) Jul 5
Chayote Mar 26 May 7 (Transplant out) -
Corn Salad Apr 23 Mar 26 (Transplant out) Jul 30
Bitter Melon Mar 26 May 7 (Transplant out) -
Cardoon Mar 12 Apr 23 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 12 Apr 30 (Transplant out) -
Cilantro - Apr 9 (Direct sow) Aug 9
Parsley Feb 26 May 7 (Transplant out) Jul 15
Dill - Apr 30 (Direct sow) Jul 30
Lemon Balm Mar 12 Apr 23 (Transplant out) -
Borage Apr 23 Apr 23 (Transplant out) Aug 4
Chervil Apr 23 Apr 2 (Transplant out) Aug 4
Lemongrass Feb 26 May 7 (Transplant out) -
Summer Savory Mar 12 Apr 23 (Transplant out) -
Marjoram Mar 12 Apr 30 (Transplant out) -
Lovage Mar 12 Apr 23 (Transplant out) Jun 30
Anise Hyssop Feb 26 Apr 23 (Transplant out) -
Shiso Mar 12 Apr 30 (Transplant out) -
Stevia Feb 26 May 7 (Transplant out) -
Chamomile Mar 12 Apr 9 (Transplant out) Jul 25
Tarragon Apr 23 Apr 23 (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 Crete 4Ese, Ne, 4.2 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 68333 Local weather →