What to plant this week in San Antonio, TX
San Antonio gardeners are currently in the thick of summer heat with no chance for frost, meaning it's all about managing intense sun and humidity while harvesting your early warm-weather crops. With last frost averaging Feb 6, your winter hardy plants like garlic and Malabar Spinach are nearing their peak production window before they slow down or bolt.
The next 7 days
San Antonio, TXGrowing in San Antonio right now
- Watch for rapid soil drying in the limestone-heavy clay typical of Bexar County; water deeply in the morning to push roots down where moisture lasts longer.
- Air circulation is critical here due to stagnant heat pockets; thin out dense Nasturtium and Zinnia stands to prevent fungal issues common in our humid summers.
- Take advantage of the current harvest window for Okra, Bush Beans, and Cucumbers before the mid-July heat spike significantly reduces flower set.
- Delay any new plantings until after Labor Day if you want to avoid the worst of the scorching afternoon sun that can damage tender transplants.
Sow this week
18 crops- Basil
- Borage
- Bush Bean
- Cleome (Spider Flower)
- Cucumber
- French Marigold
- Malabar Spinach
- Nasturtium
- Okra
- Pole Bean
- Scarlet Runner Bean
- Shiso (Japanese Basil)
- Summer Savory
- Thai Basil
- Vinca (Madagascar Periwinkle)
- Yellow Summer Squash
- Zinnia
- Zucchini
Transplant this week
Nothing is due to go out this week.
Harvest soon
36 crops- Basil
- Borage
- Bush Bean
- Cantaloupe
- Cleome (Spider Flower)
- Cosmos
- Cowpea (Black-Eyed Pea)
- Cucumber
- Edamame
- Fennel
- Flour Corn
- French Marigold
- Garden Verbena
- Garlic
- Gourd (Ornamental/Bottle)
- Honeydew Melon
- Lima Bean
- Loofah (Luffa)
- Malabar Spinach
- Nasturtium
- Okra
- Pole Bean
- Pumpkin
- Roselle (Cranberry Hibiscus)
- Scarlet Runner Bean
- Shiso (Japanese Basil)
- Summer Savory
- Sunflower
- Sweet Corn
- Thai Basil
- Vinca (Madagascar Periwinkle)
- Watermelon
- Winter Squash
- Yellow Summer Squash
- Zinnia
- Zucchini
Seasonal tips
- Succession sow bush beans every two weeks for a continuous harvest throughout the summer heat.
- Mulch around newly transplanted squash and pumpkins to retain moisture and suppress weeds as temperatures rise.
- Pinch back the tops of basil plants regularly to encourage bushier growth and prevent flowering.
Pest & disease watch
- Spider mites are exploding on French Marigolds and Shiso due to the dry, hot air conditioning exhaust often seen in our neighborhoods.
- Aphids are aggressively targeting the new growth of Pole Beans and Scarlet Runner Beans right now.
- Root maggots may be emerging as a minor issue for fresh-sown Bush Bean seeds if soil was too wet last week.
Watering this week
Water deeply in the early morning to help plants withstand afternoon heat while minimizing evaporation losses.
Harvest watermelon and cantaloupe regularly to signal the plant to continue producing fruit rather than stopping growth.
San Antonio gardening questions
3Should I start sowing anything now or wait until cooler weather?
You can still sow heat-lovers like Okra, Malabar Spinach, and Pole Beans directly into the ground today for a late summer crop. However, avoid starting cool-season crops indoors now; wait for early September when temperatures drop below 90°F consistently.
My Basil and Thai Basil plants are flowering and going leggy—what should I do?
Pinch off all flower buds immediately to redirect energy back into leaf production before the heat intensifies. If they have already bolted, cut them back hard by half or replace them with fresh starts from your current sow list.
Is it safe to harvest my Garlic now in San Antonio?
Yes, your Garlic is ready soon; check for papery white skins on the bulbs rather than waiting strictly for a calendar date. Harvest gently in the evening before the midday heat peaks to prevent the cloves from drying out too fast.
Other cities in zone 9a
9See the full zone 9a guide → · Plan your San Antonio garden in SproutGuide →