Harman US

Planting Calendar for ZIP 81301

Based on your local frost dates - last spring frost around May 28, first fall frost around Sep 30 - here is when to plant 79 common crops near ZIP 81301.

Last spring frost
May 28
First fall frost
Sep 30
Hardiness zone
6a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 16 Jun 4 (Transplant out) -
Peppers Apr 2 Jun 11 (Transplant out) -
Cucumbers May 7 Jun 4 (Transplant out) Jul 23
Zucchini May 7 Jun 4 (Transplant out) Jul 28
Summer Squash May 7 Jun 4 (Transplant out) Jul 26
Winter Squash May 7 Jun 4 (Transplant out) -
Pumpkins May 7 Jun 4 (Transplant out) -
Green Beans - May 28 (Direct sow) Jul 23
Sweet Corn - Jun 4 (Direct sow) -
Melons May 7 Jun 11 (Transplant out) -
Watermelon May 7 Jun 11 (Transplant out) -
Okra - Jun 11 (Direct sow) -
Eggplant Apr 2 Jun 11 (Transplant out) -
Lettuce Apr 30 Apr 30 (Transplant out) Jul 28
Spinach - Apr 16 (Direct sow) Aug 2
Kale Apr 16 May 7 (Transplant out) Jul 23
Peas - Apr 16 (Direct sow) Jul 18
Carrots - May 7 (Direct sow) Jul 8
Beets - Apr 30 (Direct sow) Jul 23
Radishes - Apr 30 (Direct sow) Aug 19
Broccoli Apr 16 May 14 (Transplant out) Jul 13
Cauliflower Apr 16 May 14 (Transplant out) Jul 8
Cabbage Apr 16 May 7 (Transplant out) Jul 8
Onions Mar 19 Apr 30 (Transplant out) -
Potatoes - May 14 (Direct sow) -
Swiss Chard Apr 30 May 14 (Transplant out) Jul 23
Sweet Potatoes - Jun 18 (Direct sow) -
Brussels Sprouts Apr 16 May 14 (Transplant out) Jun 8
Celery Mar 19 Jun 4 (Transplant out) -
Leeks Mar 19 May 14 (Transplant out) May 19
Turnips - May 14 (Direct sow) Jul 28
Rutabaga - May 28 (Direct sow) Jun 13
Parsnips - May 14 (Direct sow) May 19
Kohlrabi Apr 30 May 14 (Transplant out) Jul 23
Collard Greens Apr 16 May 14 (Transplant out) Jul 13
Mustard Greens - May 14 (Direct sow) Aug 2
Arugula - May 14 (Direct sow) Aug 7
Bok Choy Apr 30 May 14 (Transplant out) Jul 28
Green Onions - May 14 (Direct sow) Jul 18
Tomatillos Apr 16 Jun 4 (Transplant out) -
Fennel Apr 30 May 14 (Transplant out) Jun 28
Popcorn May 28 Jun 11 (Transplant out) -
Black-Eyed Peas May 28 Jun 11 (Transplant out) Jun 28
Lima Beans May 28 Jun 11 (Transplant out) -
Edamame May 28 Jun 11 (Transplant out) -
Peanuts May 28 Jun 11 (Transplant out) -
Globe Artichoke Apr 2 May 14 (Transplant out) Jun 18
Horseradish May 28 May 14 (Transplant out) -
Ground Cherries Apr 16 Jun 11 (Transplant out) -
Radicchio Apr 23 May 14 (Transplant out) Jul 8
Endive Apr 23 May 14 (Transplant out) Jun 18
Watercress May 7 May 14 (Transplant out) Jul 18
Sorrel Apr 16 May 7 (Transplant out) Jul 18
Sunchokes May 28 May 14 (Transplant out) -
Malabar Spinach Apr 16 Jun 11 (Transplant out) -
Amaranth Greens May 7 Jun 11 (Transplant out) Aug 2
Luffa Gourd Apr 16 Jun 11 (Transplant out) -
New Zealand Spinach Apr 30 Jun 11 (Transplant out) -
Fava Beans May 28 Apr 30 (Transplant out) Jun 23
Chayote Apr 30 Jun 11 (Transplant out) -
Corn Salad May 28 Apr 30 (Transplant out) Jul 18
Bitter Melon Apr 30 Jun 11 (Transplant out) -
Cardoon Apr 16 May 28 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 16 Jun 4 (Transplant out) -
Cilantro - May 14 (Direct sow) Jul 28
Parsley Apr 2 Jun 11 (Transplant out) Jul 3
Dill - Jun 4 (Direct sow) Jul 18
Lemon Balm Apr 16 May 28 (Transplant out) -
Borage May 28 May 28 (Transplant out) Jul 23
Chervil May 28 May 7 (Transplant out) Jul 23
Lemongrass Apr 2 Jun 11 (Transplant out) -
Summer Savory Apr 16 May 28 (Transplant out) -
Marjoram Apr 16 Jun 4 (Transplant out) -
Lovage Apr 16 May 28 (Transplant out) Jun 18
Anise Hyssop Apr 2 May 28 (Transplant out) -
Shiso Apr 16 Jun 4 (Transplant out) -
Stevia Apr 2 Jun 11 (Transplant out) -
Chamomile Apr 16 May 14 (Transplant out) Jul 13
Tarragon May 28 May 28 (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 Lemon Dam, Co, 13.7 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 81301 Local weather →