Harman US

Planting Calendar for ZIP 85128

Based on your local frost dates - last spring frost around Feb 17, first fall frost around Nov 29 - here is when to plant 79 common crops near ZIP 85128.

Last spring frost
Feb 17
First fall frost
Nov 29
Hardiness zone
9a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Jan 6 Feb 24 (Transplant out) -
Peppers Dec 23 Mar 3 (Transplant out) -
Cucumbers Jan 27 Feb 24 (Transplant out) Sep 21
Zucchini Jan 27 Feb 24 (Transplant out) Sep 26
Summer Squash Jan 27 Feb 24 (Transplant out) Sep 24
Winter Squash Jan 27 Feb 24 (Transplant out) -
Pumpkins Jan 27 Feb 24 (Transplant out) -
Green Beans - Feb 17 (Direct sow) Sep 21
Sweet Corn - Feb 24 (Direct sow) -
Melons Jan 27 Mar 3 (Transplant out) -
Watermelon Jan 27 Mar 3 (Transplant out) -
Okra - Mar 3 (Direct sow) -
Eggplant Dec 23 Mar 3 (Transplant out) -
Lettuce Jan 20 Jan 20 (Transplant out) Sep 26
Spinach - Jan 6 (Direct sow) Oct 1
Kale Jan 6 Jan 27 (Transplant out) Sep 21
Peas - Jan 6 (Direct sow) Sep 16
Carrots - Jan 27 (Direct sow) Sep 6
Beets - Jan 20 (Direct sow) Sep 21
Radishes - Jan 20 (Direct sow) Oct 18
Broccoli Jan 6 Feb 3 (Transplant out) Sep 11
Cauliflower Jan 6 Feb 3 (Transplant out) Sep 6
Cabbage Jan 6 Jan 27 (Transplant out) Sep 6
Onions Dec 9 Jan 20 (Transplant out) -
Potatoes - Feb 3 (Direct sow) -
Swiss Chard Jan 20 Feb 3 (Transplant out) Sep 21
Sweet Potatoes - Mar 10 (Direct sow) -
Brussels Sprouts Jan 6 Feb 3 (Transplant out) Aug 7
Celery Dec 9 Feb 24 (Transplant out) -
Leeks Dec 9 Feb 3 (Transplant out) Jul 18
Turnips - Feb 3 (Direct sow) Sep 26
Rutabaga - Feb 17 (Direct sow) Aug 12
Parsnips - Feb 3 (Direct sow) Jul 18
Kohlrabi Jan 20 Feb 3 (Transplant out) Sep 21
Collard Greens Jan 6 Feb 3 (Transplant out) Sep 11
Mustard Greens - Feb 3 (Direct sow) Oct 1
Arugula - Feb 3 (Direct sow) Oct 6
Bok Choy Jan 20 Feb 3 (Transplant out) Sep 26
Green Onions - Feb 3 (Direct sow) Sep 16
Tomatillos Jan 6 Feb 24 (Transplant out) -
Fennel Jan 20 Feb 3 (Transplant out) Aug 27
Popcorn Feb 17 Mar 3 (Transplant out) -
Black-Eyed Peas Feb 17 Mar 3 (Transplant out) Aug 27
Lima Beans Feb 17 Mar 3 (Transplant out) -
Edamame Feb 17 Mar 3 (Transplant out) -
Peanuts Feb 17 Mar 3 (Transplant out) -
Globe Artichoke Dec 23 Feb 3 (Transplant out) Aug 17
Horseradish Feb 17 Feb 3 (Transplant out) -
Ground Cherries Jan 6 Mar 3 (Transplant out) -
Radicchio Jan 13 Feb 3 (Transplant out) Sep 6
Endive Jan 13 Feb 3 (Transplant out) Aug 17
Watercress Jan 27 Feb 3 (Transplant out) Sep 16
Sorrel Jan 6 Jan 27 (Transplant out) Sep 16
Sunchokes Feb 17 Feb 3 (Transplant out) -
Malabar Spinach Jan 6 Mar 3 (Transplant out) -
Amaranth Greens Jan 27 Mar 3 (Transplant out) Oct 1
Luffa Gourd Jan 6 Mar 3 (Transplant out) -
New Zealand Spinach Jan 20 Mar 3 (Transplant out) -
Fava Beans Feb 17 Jan 20 (Transplant out) Aug 22
Chayote Jan 20 Mar 3 (Transplant out) -
Corn Salad Feb 17 Jan 20 (Transplant out) Sep 16
Bitter Melon Jan 20 Mar 3 (Transplant out) -
Cardoon Jan 6 Feb 17 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Jan 6 Feb 24 (Transplant out) -
Cilantro - Feb 3 (Direct sow) Sep 26
Parsley Dec 23 Mar 3 (Transplant out) Sep 1
Dill - Feb 24 (Direct sow) Sep 16
Lemon Balm Jan 6 Feb 17 (Transplant out) -
Borage Feb 17 Feb 17 (Transplant out) Sep 21
Chervil Feb 17 Jan 27 (Transplant out) Sep 21
Lemongrass Dec 23 Mar 3 (Transplant out) -
Summer Savory Jan 6 Feb 17 (Transplant out) -
Marjoram Jan 6 Feb 24 (Transplant out) -
Lovage Jan 6 Feb 17 (Transplant out) Aug 17
Anise Hyssop Dec 23 Feb 17 (Transplant out) -
Shiso Jan 6 Feb 24 (Transplant out) -
Stevia Dec 23 Mar 3 (Transplant out) -
Chamomile Jan 6 Feb 3 (Transplant out) Sep 11
Tarragon Feb 17 Feb 17 (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 Casa Grande Nm, Az, 2.7 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 85128 Local weather →