Harman US

Planting Calendar for ZIP 85255

Based on your local frost dates - last spring frost around Jan 27, first fall frost around Dec 21 - here is when to plant 79 common crops near ZIP 85255.

Last spring frost
Jan 27
First fall frost
Dec 21
Hardiness zone
10a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Dec 16 Feb 3 (Transplant out) -
Peppers Dec 2 Feb 10 (Transplant out) -
Cucumbers Jan 6 Feb 3 (Transplant out) Oct 13
Zucchini Jan 6 Feb 3 (Transplant out) Oct 18
Summer Squash Jan 6 Feb 3 (Transplant out) Oct 16
Winter Squash Jan 6 Feb 3 (Transplant out) -
Pumpkins Jan 6 Feb 3 (Transplant out) -
Green Beans - Jan 27 (Direct sow) Oct 13
Sweet Corn - Feb 3 (Direct sow) -
Melons Jan 6 Feb 10 (Transplant out) -
Watermelon Jan 6 Feb 10 (Transplant out) -
Okra - Feb 10 (Direct sow) -
Eggplant Dec 2 Feb 10 (Transplant out) -
Lettuce Dec 30 Dec 30 (Transplant out) Oct 18
Spinach - Dec 16 (Direct sow) Oct 23
Kale Dec 16 Jan 6 (Transplant out) Oct 13
Peas - Dec 16 (Direct sow) Oct 8
Carrots - Jan 6 (Direct sow) Sep 28
Beets - Dec 30 (Direct sow) Oct 13
Radishes - Dec 30 (Direct sow) Nov 9
Broccoli Dec 16 Jan 13 (Transplant out) Oct 3
Cauliflower Dec 16 Jan 13 (Transplant out) Sep 28
Cabbage Dec 16 Jan 6 (Transplant out) Sep 28
Onions Nov 18 Dec 30 (Transplant out) -
Potatoes - Jan 13 (Direct sow) -
Swiss Chard Dec 30 Jan 13 (Transplant out) Oct 13
Sweet Potatoes - Feb 17 (Direct sow) -
Brussels Sprouts Dec 16 Jan 13 (Transplant out) Aug 29
Celery Nov 18 Feb 3 (Transplant out) -
Leeks Nov 18 Jan 13 (Transplant out) Aug 9
Turnips - Jan 13 (Direct sow) Oct 18
Rutabaga - Jan 27 (Direct sow) Sep 3
Parsnips - Jan 13 (Direct sow) Aug 9
Kohlrabi Dec 30 Jan 13 (Transplant out) Oct 13
Collard Greens Dec 16 Jan 13 (Transplant out) Oct 3
Mustard Greens - Jan 13 (Direct sow) Oct 23
Arugula - Jan 13 (Direct sow) Oct 28
Bok Choy Dec 30 Jan 13 (Transplant out) Oct 18
Green Onions - Jan 13 (Direct sow) Oct 8
Tomatillos Dec 16 Feb 3 (Transplant out) -
Fennel Dec 30 Jan 13 (Transplant out) Sep 18
Popcorn Jan 27 Feb 10 (Transplant out) -
Black-Eyed Peas Jan 27 Feb 10 (Transplant out) Sep 18
Lima Beans Jan 27 Feb 10 (Transplant out) -
Edamame Jan 27 Feb 10 (Transplant out) -
Peanuts Jan 27 Feb 10 (Transplant out) -
Globe Artichoke Dec 2 Jan 13 (Transplant out) Sep 8
Horseradish Jan 27 Jan 13 (Transplant out) -
Ground Cherries Dec 16 Feb 10 (Transplant out) -
Radicchio Dec 23 Jan 13 (Transplant out) Sep 28
Endive Dec 23 Jan 13 (Transplant out) Sep 8
Watercress Jan 6 Jan 13 (Transplant out) Oct 8
Sorrel Dec 16 Jan 6 (Transplant out) Oct 8
Sunchokes Jan 27 Jan 13 (Transplant out) -
Malabar Spinach Dec 16 Feb 10 (Transplant out) -
Amaranth Greens Jan 6 Feb 10 (Transplant out) Oct 23
Luffa Gourd Dec 16 Feb 10 (Transplant out) -
New Zealand Spinach Dec 30 Feb 10 (Transplant out) -
Fava Beans Jan 27 Dec 30 (Transplant out) Sep 13
Chayote Dec 30 Feb 10 (Transplant out) -
Corn Salad Jan 27 Dec 30 (Transplant out) Oct 8
Bitter Melon Dec 30 Feb 10 (Transplant out) -
Cardoon Dec 16 Jan 27 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Dec 16 Feb 3 (Transplant out) -
Cilantro - Jan 13 (Direct sow) Oct 18
Parsley Dec 2 Feb 10 (Transplant out) Sep 23
Dill - Feb 3 (Direct sow) Oct 8
Lemon Balm Dec 16 Jan 27 (Transplant out) -
Borage Jan 27 Jan 27 (Transplant out) Oct 13
Chervil Jan 27 Jan 6 (Transplant out) Oct 13
Lemongrass Dec 2 Feb 10 (Transplant out) -
Summer Savory Dec 16 Jan 27 (Transplant out) -
Marjoram Dec 16 Feb 3 (Transplant out) -
Lovage Dec 16 Jan 27 (Transplant out) Sep 8
Anise Hyssop Dec 2 Jan 27 (Transplant out) -
Shiso Dec 16 Feb 3 (Transplant out) -
Stevia Dec 2 Feb 10 (Transplant out) -
Chamomile Dec 16 Jan 13 (Transplant out) Oct 3
Tarragon Jan 27 Jan 27 (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 Pinnacle Peak, Az, 4.6 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 85255 Local weather →