Planting calendar
May Planting Guide for San Antonio, TX: Raised Beds, Containers & In-Ground Gardens
In May, San Antonio gardeners can focus on heat-tolerant vegetables and herbs suitable for raised beds, containers, and in-ground planting. This is an ideal time to plant warm-season crops that thrive in the increasing temperatures while avoiding frost-sensitive plants.
Plant now (quick list)
Tomatoes, Peppers, Eggplants, Okra, Sweet potatoes, Basil, Cucumbers, Green beans

Plant now
- Tomatoes
- Peppers
- Eggplants
- Okra
- Sweet potatoes
- Basil
- Cucumbers
- Green beans
- Squash
- Melons
Start indoors
- Pumpkins (for transplant later)
- Winter squash (for transplant later)
- Watermelon (if not direct sowing)
- Herbs like dill and cilantro (for transplant)
- Corn (for transplant if desired)
Avoid
- Cool-season crops like broccoli and cabbage
- Leafy greens that bolt quickly in heat
- Peas
- Spinach
- Root crops sensitive to heat like carrots and radishes
Next 2 weeks
- Mulch raised beds to retain moisture
- Monitor soil moisture closely in containers
- Begin regular fertilization for fruiting plants
- Watch for pests like aphids and caterpillars
- Thin seedlings in in-ground gardens as needed
FAQs
Can I plant tomatoes directly in the ground in May in San Antonio?
Yes, May is a suitable time to plant tomatoes directly in the ground as the risk of frost has passed and soil temperatures are warm.
How often should I water container plants in May?
In May's warm weather, container plants typically need watering once daily, but always check soil moisture to avoid overwatering.
Are there any herbs that do well when planted in May?
Yes, heat-tolerant herbs like basil, oregano, and thyme thrive when planted in May in San Antonio.
Should I start any vegetables indoors in May for later transplant?
You can start pumpkins, winter squash, and watermelon indoors in May to transplant later for a longer growing season.
What common pests should I watch for in May?
Aphids, whiteflies, and caterpillars are common pests in May; inspect plants regularly and use appropriate controls as needed.
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