Harman US

Planting Calendar for ZIP 78004

Based on your local frost dates - last spring frost around Mar 15, first fall frost around Nov 13 - here is when to plant 79 common crops near ZIP 78004.

Last spring frost
Mar 15
First fall frost
Nov 13
Hardiness zone
8b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Feb 1 Mar 22 (Transplant out) -
Peppers Jan 18 Mar 29 (Transplant out) -
Cucumbers Feb 22 Mar 22 (Transplant out) Sep 5
Zucchini Feb 22 Mar 22 (Transplant out) Sep 10
Summer Squash Feb 22 Mar 22 (Transplant out) Sep 8
Winter Squash Feb 22 Mar 22 (Transplant out) -
Pumpkins Feb 22 Mar 22 (Transplant out) -
Green Beans - Mar 15 (Direct sow) Sep 5
Sweet Corn - Mar 22 (Direct sow) -
Melons Feb 22 Mar 29 (Transplant out) -
Watermelon Feb 22 Mar 29 (Transplant out) -
Okra - Mar 29 (Direct sow) -
Eggplant Jan 18 Mar 29 (Transplant out) -
Lettuce Feb 15 Feb 15 (Transplant out) Sep 10
Spinach - Feb 1 (Direct sow) Sep 15
Kale Feb 1 Feb 22 (Transplant out) Sep 5
Peas - Feb 1 (Direct sow) Aug 31
Carrots - Feb 22 (Direct sow) Aug 21
Beets - Feb 15 (Direct sow) Sep 5
Radishes - Feb 15 (Direct sow) Oct 2
Broccoli Feb 1 Mar 1 (Transplant out) Aug 26
Cauliflower Feb 1 Mar 1 (Transplant out) Aug 21
Cabbage Feb 1 Feb 22 (Transplant out) Aug 21
Onions Jan 4 Feb 15 (Transplant out) -
Potatoes - Mar 1 (Direct sow) -
Swiss Chard Feb 15 Mar 1 (Transplant out) Sep 5
Sweet Potatoes - Apr 5 (Direct sow) -
Brussels Sprouts Feb 1 Mar 1 (Transplant out) Jul 22
Celery Jan 4 Mar 22 (Transplant out) -
Leeks Jan 4 Mar 1 (Transplant out) Jul 2
Turnips - Mar 1 (Direct sow) Sep 10
Rutabaga - Mar 15 (Direct sow) Jul 27
Parsnips - Mar 1 (Direct sow) Jul 2
Kohlrabi Feb 15 Mar 1 (Transplant out) Sep 5
Collard Greens Feb 1 Mar 1 (Transplant out) Aug 26
Mustard Greens - Mar 1 (Direct sow) Sep 15
Arugula - Mar 1 (Direct sow) Sep 20
Bok Choy Feb 15 Mar 1 (Transplant out) Sep 10
Green Onions - Mar 1 (Direct sow) Aug 31
Tomatillos Feb 1 Mar 22 (Transplant out) -
Fennel Feb 15 Mar 1 (Transplant out) Aug 11
Popcorn Mar 15 Mar 29 (Transplant out) -
Black-Eyed Peas Mar 15 Mar 29 (Transplant out) Aug 11
Lima Beans Mar 15 Mar 29 (Transplant out) -
Edamame Mar 15 Mar 29 (Transplant out) -
Peanuts Mar 15 Mar 29 (Transplant out) -
Globe Artichoke Jan 18 Mar 1 (Transplant out) Aug 1
Horseradish Mar 15 Mar 1 (Transplant out) -
Ground Cherries Feb 1 Mar 29 (Transplant out) -
Radicchio Feb 8 Mar 1 (Transplant out) Aug 21
Endive Feb 8 Mar 1 (Transplant out) Aug 1
Watercress Feb 22 Mar 1 (Transplant out) Aug 31
Sorrel Feb 1 Feb 22 (Transplant out) Aug 31
Sunchokes Mar 15 Mar 1 (Transplant out) -
Malabar Spinach Feb 1 Mar 29 (Transplant out) -
Amaranth Greens Feb 22 Mar 29 (Transplant out) Sep 15
Luffa Gourd Feb 1 Mar 29 (Transplant out) -
New Zealand Spinach Feb 15 Mar 29 (Transplant out) -
Fava Beans Mar 15 Feb 15 (Transplant out) Aug 6
Chayote Feb 15 Mar 29 (Transplant out) -
Corn Salad Mar 15 Feb 15 (Transplant out) Aug 31
Bitter Melon Feb 15 Mar 29 (Transplant out) -
Cardoon Feb 1 Mar 15 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Feb 1 Mar 22 (Transplant out) -
Cilantro - Mar 1 (Direct sow) Sep 10
Parsley Jan 18 Mar 29 (Transplant out) Aug 16
Dill - Mar 22 (Direct sow) Aug 31
Lemon Balm Feb 1 Mar 15 (Transplant out) -
Borage Mar 15 Mar 15 (Transplant out) Sep 5
Chervil Mar 15 Feb 22 (Transplant out) Sep 5
Lemongrass Jan 18 Mar 29 (Transplant out) -
Summer Savory Feb 1 Mar 15 (Transplant out) -
Marjoram Feb 1 Mar 22 (Transplant out) -
Lovage Feb 1 Mar 15 (Transplant out) Aug 1
Anise Hyssop Jan 18 Mar 15 (Transplant out) -
Shiso Feb 1 Mar 22 (Transplant out) -
Stevia Jan 18 Mar 29 (Transplant out) -
Chamomile Feb 1 Mar 1 (Transplant out) Aug 26
Tarragon Mar 15 Mar 15 (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 Boerne, Tx, 12.5 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 78004 Local weather →