Harman US

Planting Calendar for ZIP 81645

Based on your local frost dates - last spring frost around Jun 21, first fall frost around Sep 7 - here is when to plant 79 common crops near ZIP 81645.

Last spring frost
Jun 21
First fall frost
Sep 7
Hardiness zone
5a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes May 10 Jun 28 (Transplant out) -
Peppers Apr 26 Jul 5 (Transplant out) -
Cucumbers May 31 Jun 28 (Transplant out) Jun 30
Zucchini May 31 Jun 28 (Transplant out) Jul 5
Summer Squash May 31 Jun 28 (Transplant out) Jul 3
Winter Squash May 31 Jun 28 (Transplant out) -
Pumpkins May 31 Jun 28 (Transplant out) -
Green Beans - Jun 21 (Direct sow) Jun 30
Sweet Corn - Jun 28 (Direct sow) -
Melons May 31 Jul 5 (Transplant out) -
Watermelon May 31 Jul 5 (Transplant out) -
Okra - Jul 5 (Direct sow) -
Eggplant Apr 26 Jul 5 (Transplant out) -
Lettuce May 24 May 24 (Transplant out) Jul 5
Spinach - May 10 (Direct sow) Jul 10
Kale May 10 May 31 (Transplant out) Jun 30
Peas - May 10 (Direct sow) Jun 25
Carrots - May 31 (Direct sow) Jun 15
Beets - May 24 (Direct sow) Jun 30
Radishes - May 24 (Direct sow) Jul 27
Broccoli May 10 Jun 7 (Transplant out) Jun 20
Cauliflower May 10 Jun 7 (Transplant out) Jun 15
Cabbage May 10 May 31 (Transplant out) Jun 15
Onions Apr 12 May 24 (Transplant out) -
Potatoes - Jun 7 (Direct sow) -
Swiss Chard May 24 Jun 7 (Transplant out) Jun 30
Sweet Potatoes - Jul 12 (Direct sow) -
Brussels Sprouts May 10 Jun 7 (Transplant out) May 16
Celery Apr 12 Jun 28 (Transplant out) -
Leeks Apr 12 Jun 7 (Transplant out) Apr 26
Turnips - Jun 7 (Direct sow) Jul 5
Rutabaga - Jun 21 (Direct sow) May 21
Parsnips - Jun 7 (Direct sow) Apr 26
Kohlrabi May 24 Jun 7 (Transplant out) Jun 30
Collard Greens May 10 Jun 7 (Transplant out) Jun 20
Mustard Greens - Jun 7 (Direct sow) Jul 10
Arugula - Jun 7 (Direct sow) Jul 15
Bok Choy May 24 Jun 7 (Transplant out) Jul 5
Green Onions - Jun 7 (Direct sow) Jun 25
Tomatillos May 10 Jun 28 (Transplant out) -
Fennel May 24 Jun 7 (Transplant out) Jun 5
Popcorn Jun 21 Jul 5 (Transplant out) -
Black-Eyed Peas Jun 21 Jul 5 (Transplant out) Jun 5
Lima Beans Jun 21 Jul 5 (Transplant out) -
Edamame Jun 21 Jul 5 (Transplant out) -
Peanuts Jun 21 Jul 5 (Transplant out) -
Globe Artichoke Apr 26 Jun 7 (Transplant out) May 26
Horseradish Jun 21 Jun 7 (Transplant out) -
Ground Cherries May 10 Jul 5 (Transplant out) -
Radicchio May 17 Jun 7 (Transplant out) Jun 15
Endive May 17 Jun 7 (Transplant out) May 26
Watercress May 31 Jun 7 (Transplant out) Jun 25
Sorrel May 10 May 31 (Transplant out) Jun 25
Sunchokes Jun 21 Jun 7 (Transplant out) -
Malabar Spinach May 10 Jul 5 (Transplant out) -
Amaranth Greens May 31 Jul 5 (Transplant out) Jul 10
Luffa Gourd May 10 Jul 5 (Transplant out) -
New Zealand Spinach May 24 Jul 5 (Transplant out) -
Fava Beans Jun 21 May 24 (Transplant out) May 31
Chayote May 24 Jul 5 (Transplant out) -
Corn Salad Jun 21 May 24 (Transplant out) Jun 25
Bitter Melon May 24 Jul 5 (Transplant out) -
Cardoon May 10 Jun 21 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil May 10 Jun 28 (Transplant out) -
Cilantro - Jun 7 (Direct sow) Jul 5
Parsley Apr 26 Jul 5 (Transplant out) Jun 10
Dill - Jun 28 (Direct sow) Jun 25
Lemon Balm May 10 Jun 21 (Transplant out) -
Borage Jun 21 Jun 21 (Transplant out) Jun 30
Chervil Jun 21 May 31 (Transplant out) Jun 30
Lemongrass Apr 26 Jul 5 (Transplant out) -
Summer Savory May 10 Jun 21 (Transplant out) -
Marjoram May 10 Jun 28 (Transplant out) -
Lovage May 10 Jun 21 (Transplant out) May 26
Anise Hyssop Apr 26 Jun 21 (Transplant out) -
Shiso May 10 Jun 28 (Transplant out) -
Stevia Apr 26 Jul 5 (Transplant out) -
Chamomile May 10 Jun 7 (Transplant out) Jun 20
Tarragon Jun 21 Jun 21 (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 Vail, Co, 13.9 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

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