Planting Calendar for ZIP 85121
Based on your local frost dates - last spring frost around Feb 23, first fall frost around Nov 24 - here is when to plant 79 common crops near ZIP 85121.
Last spring frost
Feb 23
First fall frost
Nov 24
Hardiness zone
9b
Vegetables
| Crop | Start seeds indoors | Plant outside | Fall planting by |
|---|---|---|---|
| Tomatoes | Jan 12 | Mar 2 (Transplant out) | - |
| Peppers | Dec 29 | Mar 9 (Transplant out) | - |
| Cucumbers | Feb 2 | Mar 2 (Transplant out) | Sep 16 |
| Zucchini | Feb 2 | Mar 2 (Transplant out) | Sep 21 |
| Summer Squash | Feb 2 | Mar 2 (Transplant out) | Sep 19 |
| Winter Squash | Feb 2 | Mar 2 (Transplant out) | - |
| Pumpkins | Feb 2 | Mar 2 (Transplant out) | - |
| Green Beans | - | Feb 23 (Direct sow) | Sep 16 |
| Sweet Corn | - | Mar 2 (Direct sow) | - |
| Melons | Feb 2 | Mar 9 (Transplant out) | - |
| Watermelon | Feb 2 | Mar 9 (Transplant out) | - |
| Okra | - | Mar 9 (Direct sow) | - |
| Eggplant | Dec 29 | Mar 9 (Transplant out) | - |
| Lettuce | Jan 26 | Jan 26 (Transplant out) | Sep 21 |
| Spinach | - | Jan 12 (Direct sow) | Sep 26 |
| Kale | Jan 12 | Feb 2 (Transplant out) | Sep 16 |
| Peas | - | Jan 12 (Direct sow) | Sep 11 |
| Carrots | - | Feb 2 (Direct sow) | Sep 1 |
| Beets | - | Jan 26 (Direct sow) | Sep 16 |
| Radishes | - | Jan 26 (Direct sow) | Oct 13 |
| Broccoli | Jan 12 | Feb 9 (Transplant out) | Sep 6 |
| Cauliflower | Jan 12 | Feb 9 (Transplant out) | Sep 1 |
| Cabbage | Jan 12 | Feb 2 (Transplant out) | Sep 1 |
| Onions | Dec 15 | Jan 26 (Transplant out) | - |
| Potatoes | - | Feb 9 (Direct sow) | - |
| Swiss Chard | Jan 26 | Feb 9 (Transplant out) | Sep 16 |
| Sweet Potatoes | - | Mar 16 (Direct sow) | - |
| Brussels Sprouts | Jan 12 | Feb 9 (Transplant out) | Aug 2 |
| Celery | Dec 15 | Mar 2 (Transplant out) | - |
| Leeks | Dec 15 | Feb 9 (Transplant out) | Jul 13 |
| Turnips | - | Feb 9 (Direct sow) | Sep 21 |
| Rutabaga | - | Feb 23 (Direct sow) | Aug 7 |
| Parsnips | - | Feb 9 (Direct sow) | Jul 13 |
| Kohlrabi | Jan 26 | Feb 9 (Transplant out) | Sep 16 |
| Collard Greens | Jan 12 | Feb 9 (Transplant out) | Sep 6 |
| Mustard Greens | - | Feb 9 (Direct sow) | Sep 26 |
| Arugula | - | Feb 9 (Direct sow) | Oct 1 |
| Bok Choy | Jan 26 | Feb 9 (Transplant out) | Sep 21 |
| Green Onions | - | Feb 9 (Direct sow) | Sep 11 |
| Tomatillos | Jan 12 | Mar 2 (Transplant out) | - |
| Fennel | Jan 26 | Feb 9 (Transplant out) | Aug 22 |
| Popcorn | Feb 23 | Mar 9 (Transplant out) | - |
| Black-Eyed Peas | Feb 23 | Mar 9 (Transplant out) | Aug 22 |
| Lima Beans | Feb 23 | Mar 9 (Transplant out) | - |
| Edamame | Feb 23 | Mar 9 (Transplant out) | - |
| Peanuts | Feb 23 | Mar 9 (Transplant out) | - |
| Globe Artichoke | Dec 29 | Feb 9 (Transplant out) | Aug 12 |
| Horseradish | Feb 23 | Feb 9 (Transplant out) | - |
| Ground Cherries | Jan 12 | Mar 9 (Transplant out) | - |
| Radicchio | Jan 19 | Feb 9 (Transplant out) | Sep 1 |
| Endive | Jan 19 | Feb 9 (Transplant out) | Aug 12 |
| Watercress | Feb 2 | Feb 9 (Transplant out) | Sep 11 |
| Sorrel | Jan 12 | Feb 2 (Transplant out) | Sep 11 |
| Sunchokes | Feb 23 | Feb 9 (Transplant out) | - |
| Malabar Spinach | Jan 12 | Mar 9 (Transplant out) | - |
| Amaranth Greens | Feb 2 | Mar 9 (Transplant out) | Sep 26 |
| Luffa Gourd | Jan 12 | Mar 9 (Transplant out) | - |
| New Zealand Spinach | Jan 26 | Mar 9 (Transplant out) | - |
| Fava Beans | Feb 23 | Jan 26 (Transplant out) | Aug 17 |
| Chayote | Jan 26 | Mar 9 (Transplant out) | - |
| Corn Salad | Feb 23 | Jan 26 (Transplant out) | Sep 11 |
| Bitter Melon | Jan 26 | Mar 9 (Transplant out) | - |
| Cardoon | Jan 12 | Feb 23 (Transplant out) | - |
Herbs
| Crop | Start seeds indoors | Plant outside | Fall planting by |
|---|---|---|---|
| Basil | Jan 12 | Mar 2 (Transplant out) | - |
| Cilantro | - | Feb 9 (Direct sow) | Sep 21 |
| Parsley | Dec 29 | Mar 9 (Transplant out) | Aug 27 |
| Dill | - | Mar 2 (Direct sow) | Sep 11 |
| Lemon Balm | Jan 12 | Feb 23 (Transplant out) | - |
| Borage | Feb 23 | Feb 23 (Transplant out) | Sep 16 |
| Chervil | Feb 23 | Feb 2 (Transplant out) | Sep 16 |
| Lemongrass | Dec 29 | Mar 9 (Transplant out) | - |
| Summer Savory | Jan 12 | Feb 23 (Transplant out) | - |
| Marjoram | Jan 12 | Mar 2 (Transplant out) | - |
| Lovage | Jan 12 | Feb 23 (Transplant out) | Aug 12 |
| Anise Hyssop | Dec 29 | Feb 23 (Transplant out) | - |
| Shiso | Jan 12 | Mar 2 (Transplant out) | - |
| Stevia | Dec 29 | Mar 9 (Transplant out) | - |
| Chamomile | Jan 12 | Feb 9 (Transplant out) | Sep 6 |
| Tarragon | Feb 23 | Feb 23 (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 Maricopa 4 N, Az, 6.9 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.