When to Plant in San Antonio, TX

San Antonio's South Texas location gives it one of the longest growing seasons in the state — Zone 8b/9a with a last frost around February 28. The city bridges the gap between North Texas and the subtropical Gulf Coast climate.

The two-season approach works well in San Antonio: a spring garden from February through May and an excellent fall garden from August through November. Summer heat (regularly 100°F+) limits most vegetable production, but the shoulder seasons are outstanding.

What to plant now in San Antonio

Spring: After February 28 last frost — tomatoes, peppers, squash, beans, cucumbers, and corn.
Late Spring (May–Jun): Okra, sweet potatoes, and southern peas as summer heat arrives.
Fall: Often the best season — broccoli, lettuce, kale, spinach, and a second tomato crop.
Winter: Cool-season greens, garlic, and root vegetables.

In San Antonio (270 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

Month by month in San Antonio

Month	What to do
January	Start onion seeds and tomato seeds indoors. Plant cool-season crops outdoors.
February	After February 15 — transplant tomatoes and peppers. Plant beans and squash.
March	Full spring garden. Plant cucumbers and corn.
April	Plant okra and sweet potatoes. Heat building.
May	Harvest spring crops. Plant southern peas.
June	Summer heat. Maintain okra and heat-tolerant crops.
July	Peak heat. Water deeply. Start fall seeds.
August	Plant fall tomatoes and peppers. Begin fall garden.
September	Expand fall garden: beans, broccoli, kale, lettuce.
October	Full fall garden. Plant garlic.
November	Harvest fall crops. Cool-season peak.
December	Harvest winter crops. Excellent growing conditions.

Frost dates for San Antonio ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
78245	February 28	November 25	9a
78244	March 4	November 21	9a
78238	February 28	November 25	9a

FAQ

When is the last frost date in San Antonio, TX?

San Antonio's average last frost date is around February 28. This earlier date gives SA gardeners a head start over Dallas and Fort Worth.

What grows best in San Antonio?

Spring: tomatoes, peppers, squash, and beans (Feb–May). Summer: okra and sweet potatoes. Fall: broccoli, kale, lettuce, spinach, and carrots — often the best growing season.

How is San Antonio different from Dallas for gardening?

San Antonio's earlier last frost (February 28 vs. February 28) gives you nearly a month head start on spring planting. The summer heat is similar, but the fall season extends a bit longer.

How does Plan My Garden help San Antonio gardeners?

Enter your San Antonio zip code for exact planting dates calibrated to South Texas's longer growing season and subtropical climate.