Harman US

Planting Calendar for ZIP 78226

Based on your local frost dates - last spring frost around Feb 22, first fall frost around Dec 2 - here is when to plant 79 common crops near ZIP 78226.

Last spring frost
Feb 22
First fall frost
Dec 2
Hardiness zone
9a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Jan 11 Mar 1 (Transplant out) -
Peppers Dec 28 Mar 8 (Transplant out) -
Cucumbers Feb 1 Mar 1 (Transplant out) Sep 24
Zucchini Feb 1 Mar 1 (Transplant out) Sep 29
Summer Squash Feb 1 Mar 1 (Transplant out) Sep 27
Winter Squash Feb 1 Mar 1 (Transplant out) -
Pumpkins Feb 1 Mar 1 (Transplant out) -
Green Beans - Feb 22 (Direct sow) Sep 24
Sweet Corn - Mar 1 (Direct sow) -
Melons Feb 1 Mar 8 (Transplant out) -
Watermelon Feb 1 Mar 8 (Transplant out) -
Okra - Mar 8 (Direct sow) -
Eggplant Dec 28 Mar 8 (Transplant out) -
Lettuce Jan 25 Jan 25 (Transplant out) Sep 29
Spinach - Jan 11 (Direct sow) Oct 4
Kale Jan 11 Feb 1 (Transplant out) Sep 24
Peas - Jan 11 (Direct sow) Sep 19
Carrots - Feb 1 (Direct sow) Sep 9
Beets - Jan 25 (Direct sow) Sep 24
Radishes - Jan 25 (Direct sow) Oct 21
Broccoli Jan 11 Feb 8 (Transplant out) Sep 14
Cauliflower Jan 11 Feb 8 (Transplant out) Sep 9
Cabbage Jan 11 Feb 1 (Transplant out) Sep 9
Onions Dec 14 Jan 25 (Transplant out) -
Potatoes - Feb 8 (Direct sow) -
Swiss Chard Jan 25 Feb 8 (Transplant out) Sep 24
Sweet Potatoes - Mar 15 (Direct sow) -
Brussels Sprouts Jan 11 Feb 8 (Transplant out) Aug 10
Celery Dec 14 Mar 1 (Transplant out) -
Leeks Dec 14 Feb 8 (Transplant out) Jul 21
Turnips - Feb 8 (Direct sow) Sep 29
Rutabaga - Feb 22 (Direct sow) Aug 15
Parsnips - Feb 8 (Direct sow) Jul 21
Kohlrabi Jan 25 Feb 8 (Transplant out) Sep 24
Collard Greens Jan 11 Feb 8 (Transplant out) Sep 14
Mustard Greens - Feb 8 (Direct sow) Oct 4
Arugula - Feb 8 (Direct sow) Oct 9
Bok Choy Jan 25 Feb 8 (Transplant out) Sep 29
Green Onions - Feb 8 (Direct sow) Sep 19
Tomatillos Jan 11 Mar 1 (Transplant out) -
Fennel Jan 25 Feb 8 (Transplant out) Aug 30
Popcorn Feb 22 Mar 8 (Transplant out) -
Black-Eyed Peas Feb 22 Mar 8 (Transplant out) Aug 30
Lima Beans Feb 22 Mar 8 (Transplant out) -
Edamame Feb 22 Mar 8 (Transplant out) -
Peanuts Feb 22 Mar 8 (Transplant out) -
Globe Artichoke Dec 28 Feb 8 (Transplant out) Aug 20
Horseradish Feb 22 Feb 8 (Transplant out) -
Ground Cherries Jan 11 Mar 8 (Transplant out) -
Radicchio Jan 18 Feb 8 (Transplant out) Sep 9
Endive Jan 18 Feb 8 (Transplant out) Aug 20
Watercress Feb 1 Feb 8 (Transplant out) Sep 19
Sorrel Jan 11 Feb 1 (Transplant out) Sep 19
Sunchokes Feb 22 Feb 8 (Transplant out) -
Malabar Spinach Jan 11 Mar 8 (Transplant out) -
Amaranth Greens Feb 1 Mar 8 (Transplant out) Oct 4
Luffa Gourd Jan 11 Mar 8 (Transplant out) -
New Zealand Spinach Jan 25 Mar 8 (Transplant out) -
Fava Beans Feb 22 Jan 25 (Transplant out) Aug 25
Chayote Jan 25 Mar 8 (Transplant out) -
Corn Salad Feb 22 Jan 25 (Transplant out) Sep 19
Bitter Melon Jan 25 Mar 8 (Transplant out) -
Cardoon Jan 11 Feb 22 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Jan 11 Mar 1 (Transplant out) -
Cilantro - Feb 8 (Direct sow) Sep 29
Parsley Dec 28 Mar 8 (Transplant out) Sep 4
Dill - Mar 1 (Direct sow) Sep 19
Lemon Balm Jan 11 Feb 22 (Transplant out) -
Borage Feb 22 Feb 22 (Transplant out) Sep 24
Chervil Feb 22 Feb 1 (Transplant out) Sep 24
Lemongrass Dec 28 Mar 8 (Transplant out) -
Summer Savory Jan 11 Feb 22 (Transplant out) -
Marjoram Jan 11 Mar 1 (Transplant out) -
Lovage Jan 11 Feb 22 (Transplant out) Aug 20
Anise Hyssop Dec 28 Feb 22 (Transplant out) -
Shiso Jan 11 Mar 1 (Transplant out) -
Stevia Dec 28 Mar 8 (Transplant out) -
Chamomile Jan 11 Feb 8 (Transplant out) Sep 14
Tarragon Feb 22 Feb 22 (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 Antonio Kelly Afb, Tx, 0.8 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

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