Harman US

Planting Calendar for ZIP 85631

Based on your local frost dates - last spring frost around Feb 4, first fall frost around Dec 8 - here is when to plant 79 common crops near ZIP 85631.

Last spring frost
Feb 4
First fall frost
Dec 8
Hardiness zone
9a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Dec 24 Feb 11 (Transplant out) -
Peppers Dec 10 Feb 18 (Transplant out) -
Cucumbers Jan 14 Feb 11 (Transplant out) Sep 30
Zucchini Jan 14 Feb 11 (Transplant out) Oct 5
Summer Squash Jan 14 Feb 11 (Transplant out) Oct 3
Winter Squash Jan 14 Feb 11 (Transplant out) -
Pumpkins Jan 14 Feb 11 (Transplant out) -
Green Beans - Feb 4 (Direct sow) Sep 30
Sweet Corn - Feb 11 (Direct sow) -
Melons Jan 14 Feb 18 (Transplant out) -
Watermelon Jan 14 Feb 18 (Transplant out) -
Okra - Feb 18 (Direct sow) -
Eggplant Dec 10 Feb 18 (Transplant out) -
Lettuce Jan 7 Jan 7 (Transplant out) Oct 5
Spinach - Dec 24 (Direct sow) Oct 10
Kale Dec 24 Jan 14 (Transplant out) Sep 30
Peas - Dec 24 (Direct sow) Sep 25
Carrots - Jan 14 (Direct sow) Sep 15
Beets - Jan 7 (Direct sow) Sep 30
Radishes - Jan 7 (Direct sow) Oct 27
Broccoli Dec 24 Jan 21 (Transplant out) Sep 20
Cauliflower Dec 24 Jan 21 (Transplant out) Sep 15
Cabbage Dec 24 Jan 14 (Transplant out) Sep 15
Onions Nov 26 Jan 7 (Transplant out) -
Potatoes - Jan 21 (Direct sow) -
Swiss Chard Jan 7 Jan 21 (Transplant out) Sep 30
Sweet Potatoes - Feb 25 (Direct sow) -
Brussels Sprouts Dec 24 Jan 21 (Transplant out) Aug 16
Celery Nov 26 Feb 11 (Transplant out) -
Leeks Nov 26 Jan 21 (Transplant out) Jul 27
Turnips - Jan 21 (Direct sow) Oct 5
Rutabaga - Feb 4 (Direct sow) Aug 21
Parsnips - Jan 21 (Direct sow) Jul 27
Kohlrabi Jan 7 Jan 21 (Transplant out) Sep 30
Collard Greens Dec 24 Jan 21 (Transplant out) Sep 20
Mustard Greens - Jan 21 (Direct sow) Oct 10
Arugula - Jan 21 (Direct sow) Oct 15
Bok Choy Jan 7 Jan 21 (Transplant out) Oct 5
Green Onions - Jan 21 (Direct sow) Sep 25
Tomatillos Dec 24 Feb 11 (Transplant out) -
Fennel Jan 7 Jan 21 (Transplant out) Sep 5
Popcorn Feb 4 Feb 18 (Transplant out) -
Black-Eyed Peas Feb 4 Feb 18 (Transplant out) Sep 5
Lima Beans Feb 4 Feb 18 (Transplant out) -
Edamame Feb 4 Feb 18 (Transplant out) -
Peanuts Feb 4 Feb 18 (Transplant out) -
Globe Artichoke Dec 10 Jan 21 (Transplant out) Aug 26
Horseradish Feb 4 Jan 21 (Transplant out) -
Ground Cherries Dec 24 Feb 18 (Transplant out) -
Radicchio Dec 31 Jan 21 (Transplant out) Sep 15
Endive Dec 31 Jan 21 (Transplant out) Aug 26
Watercress Jan 14 Jan 21 (Transplant out) Sep 25
Sorrel Dec 24 Jan 14 (Transplant out) Sep 25
Sunchokes Feb 4 Jan 21 (Transplant out) -
Malabar Spinach Dec 24 Feb 18 (Transplant out) -
Amaranth Greens Jan 14 Feb 18 (Transplant out) Oct 10
Luffa Gourd Dec 24 Feb 18 (Transplant out) -
New Zealand Spinach Jan 7 Feb 18 (Transplant out) -
Fava Beans Feb 4 Jan 7 (Transplant out) Aug 31
Chayote Jan 7 Feb 18 (Transplant out) -
Corn Salad Feb 4 Jan 7 (Transplant out) Sep 25
Bitter Melon Jan 7 Feb 18 (Transplant out) -
Cardoon Dec 24 Feb 4 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Dec 24 Feb 11 (Transplant out) -
Cilantro - Jan 21 (Direct sow) Oct 5
Parsley Dec 10 Feb 18 (Transplant out) Sep 10
Dill - Feb 11 (Direct sow) Sep 25
Lemon Balm Dec 24 Feb 4 (Transplant out) -
Borage Feb 4 Feb 4 (Transplant out) Sep 30
Chervil Feb 4 Jan 14 (Transplant out) Sep 30
Lemongrass Dec 10 Feb 18 (Transplant out) -
Summer Savory Dec 24 Feb 4 (Transplant out) -
Marjoram Dec 24 Feb 11 (Transplant out) -
Lovage Dec 24 Feb 4 (Transplant out) Aug 26
Anise Hyssop Dec 10 Feb 4 (Transplant out) -
Shiso Dec 24 Feb 11 (Transplant out) -
Stevia Dec 10 Feb 18 (Transplant out) -
Chamomile Dec 24 Jan 21 (Transplant out) Sep 20
Tarragon Feb 4 Feb 4 (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 San Manuel, Az, 4.1 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 85631 Local weather →