Harman US

Planting Calendar for ZIP 83602

Based on your local frost dates - last spring frost around Jun 1, first fall frost around Sep 10 - here is when to plant 79 common crops near ZIP 83602.

Last spring frost
Jun 1
First fall frost
Sep 10
Hardiness zone
7a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 20 Jun 8 (Transplant out) -
Peppers Apr 6 Jun 15 (Transplant out) -
Cucumbers May 11 Jun 8 (Transplant out) Jul 3
Zucchini May 11 Jun 8 (Transplant out) Jul 8
Summer Squash May 11 Jun 8 (Transplant out) Jul 6
Winter Squash May 11 Jun 8 (Transplant out) -
Pumpkins May 11 Jun 8 (Transplant out) -
Green Beans - Jun 1 (Direct sow) Jul 3
Sweet Corn - Jun 8 (Direct sow) -
Melons May 11 Jun 15 (Transplant out) -
Watermelon May 11 Jun 15 (Transplant out) -
Okra - Jun 15 (Direct sow) -
Eggplant Apr 6 Jun 15 (Transplant out) -
Lettuce May 4 May 4 (Transplant out) Jul 8
Spinach - Apr 20 (Direct sow) Jul 13
Kale Apr 20 May 11 (Transplant out) Jul 3
Peas - Apr 20 (Direct sow) Jun 28
Carrots - May 11 (Direct sow) Jun 18
Beets - May 4 (Direct sow) Jul 3
Radishes - May 4 (Direct sow) Jul 30
Broccoli Apr 20 May 18 (Transplant out) Jun 23
Cauliflower Apr 20 May 18 (Transplant out) Jun 18
Cabbage Apr 20 May 11 (Transplant out) Jun 18
Onions Mar 23 May 4 (Transplant out) -
Potatoes - May 18 (Direct sow) -
Swiss Chard May 4 May 18 (Transplant out) Jul 3
Sweet Potatoes - Jun 22 (Direct sow) -
Brussels Sprouts Apr 20 May 18 (Transplant out) May 19
Celery Mar 23 Jun 8 (Transplant out) -
Leeks Mar 23 May 18 (Transplant out) Apr 29
Turnips - May 18 (Direct sow) Jul 8
Rutabaga - Jun 1 (Direct sow) May 24
Parsnips - May 18 (Direct sow) Apr 29
Kohlrabi May 4 May 18 (Transplant out) Jul 3
Collard Greens Apr 20 May 18 (Transplant out) Jun 23
Mustard Greens - May 18 (Direct sow) Jul 13
Arugula - May 18 (Direct sow) Jul 18
Bok Choy May 4 May 18 (Transplant out) Jul 8
Green Onions - May 18 (Direct sow) Jun 28
Tomatillos Apr 20 Jun 8 (Transplant out) -
Fennel May 4 May 18 (Transplant out) Jun 8
Popcorn Jun 1 Jun 15 (Transplant out) -
Black-Eyed Peas Jun 1 Jun 15 (Transplant out) Jun 8
Lima Beans Jun 1 Jun 15 (Transplant out) -
Edamame Jun 1 Jun 15 (Transplant out) -
Peanuts Jun 1 Jun 15 (Transplant out) -
Globe Artichoke Apr 6 May 18 (Transplant out) May 29
Horseradish Jun 1 May 18 (Transplant out) -
Ground Cherries Apr 20 Jun 15 (Transplant out) -
Radicchio Apr 27 May 18 (Transplant out) Jun 18
Endive Apr 27 May 18 (Transplant out) May 29
Watercress May 11 May 18 (Transplant out) Jun 28
Sorrel Apr 20 May 11 (Transplant out) Jun 28
Sunchokes Jun 1 May 18 (Transplant out) -
Malabar Spinach Apr 20 Jun 15 (Transplant out) -
Amaranth Greens May 11 Jun 15 (Transplant out) Jul 13
Luffa Gourd Apr 20 Jun 15 (Transplant out) -
New Zealand Spinach May 4 Jun 15 (Transplant out) -
Fava Beans Jun 1 May 4 (Transplant out) Jun 3
Chayote May 4 Jun 15 (Transplant out) -
Corn Salad Jun 1 May 4 (Transplant out) Jun 28
Bitter Melon May 4 Jun 15 (Transplant out) -
Cardoon Apr 20 Jun 1 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 20 Jun 8 (Transplant out) -
Cilantro - May 18 (Direct sow) Jul 8
Parsley Apr 6 Jun 15 (Transplant out) Jun 13
Dill - Jun 8 (Direct sow) Jun 28
Lemon Balm Apr 20 Jun 1 (Transplant out) -
Borage Jun 1 Jun 1 (Transplant out) Jul 3
Chervil Jun 1 May 11 (Transplant out) Jul 3
Lemongrass Apr 6 Jun 15 (Transplant out) -
Summer Savory Apr 20 Jun 1 (Transplant out) -
Marjoram Apr 20 Jun 8 (Transplant out) -
Lovage Apr 20 Jun 1 (Transplant out) May 29
Anise Hyssop Apr 6 Jun 1 (Transplant out) -
Shiso Apr 20 Jun 8 (Transplant out) -
Stevia Apr 6 Jun 15 (Transplant out) -
Chamomile Apr 20 May 18 (Transplant out) Jun 23
Tarragon Jun 1 Jun 1 (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 Garden Valley, Id, 8.8 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 83602 Local weather →