Planting calendar
August Planting Guide for San Antonio, TX: Raised Beds, Containers & In-Ground
In August in San Antonio, TX, focus on planting heat-tolerant vegetables and herbs in raised beds, containers, and in-ground gardens. This is a good time to sow fall crops like leafy greens and root vegetables while preparing for cooler weather. Avoid planting frost-sensitive crops as temperatures remain high.
Plant now (quick list)
Okra, Sweet potatoes, Southern peas (cowpeas), Malabar spinach, Eggplant, Peppers, Basil, Swiss chard
Plant now
- Okra
- Sweet potatoes
- Southern peas (cowpeas)
- Malabar spinach
- Eggplant
- Peppers
- Basil
- Swiss chard
- Collard greens
- Turnips
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Kale
- Lettuce
- Spinach
- Brussels sprouts
- Carrots
- Beets
- Radishes
Avoid
- Tomatoes (direct sow)
- Corn
- Beans (pole and bush)
- Cucumbers
- Melons
- Pumpkins
- Squash
- Watermelon
- Potatoes
- Sweet corn
Next 2 weeks
- Monitor soil moisture closely; water deeply in early morning
- Apply mulch to conserve moisture and reduce soil temperature
- Watch for pests like aphids and spider mites on warm-weather crops
- Fertilize leafy greens with nitrogen-rich fertilizer
- Thin seedlings to avoid overcrowding
- Start hardening off indoor seedlings for fall transplant
- Remove any diseased or yellowing leaves promptly
- Prepare raised beds with compost for fall planting
- Rotate crops to reduce soil-borne diseases
- Check container drainage to prevent root rot
FAQs
Can I plant tomatoes in August in San Antonio?
It's best to avoid direct sowing tomatoes in August due to high heat; start seeds indoors now for fall transplanting.
What vegetables grow well in containers during August?
Heat-tolerant crops like okra, peppers, and basil perform well in containers during August.
How often should I water raised beds in August?
Water deeply at least 2-3 times per week, adjusting based on rainfall and soil moisture.
Is it too late to start fall crops in August?
No, August is a good time to start cool-season crops indoors and prepare for fall planting.
What pests should I watch for in August?
Aphids, spider mites, and whiteflies are common pests during hot months; monitor regularly.
Next steps
Get a personalized planting plan
Answer a few questions and generate a plan for your exact location and setup.
Build your garden shopping list
Get a starter kit checklist for what you want to grow (with optional links).
Ask the Gardener
Get quick answers and next-step guidance for your garden.
Want this page for a different city? Try the tool and enter your ZIP: Plant this month.