Planting calendar
April Planting Guide for San Antonio, TX: Raised Beds, Containers, and In-Ground Gardens
April in San Antonio is ideal for planting warm-season vegetables and herbs in raised beds, containers, and in-ground gardens. Focus on heat-tolerant crops and start some seeds indoors for later transplanting. Avoid planting frost-sensitive plants too early as occasional cool nights may still occur.
Plant now (quick list)
Tomatoes, Peppers, Eggplants, Okra, Sweet potatoes, Basil, Cucumbers, Squash
Plant now
- Tomatoes
- Peppers
- Eggplants
- Okra
- Sweet potatoes
- Basil
- Cucumbers
- Squash
- Melons
- Beans
Start indoors
- Pumpkin
- Watermelon (if not direct sowing)
- Corn
- Sunflowers
- Herbs like dill and cilantro
Avoid
- Broccoli
- Cauliflower
- Brussels sprouts
- Lettuce
- Spinach
- Kale
- Peas
- Radishes
Next 2 weeks
- Direct sow corn in raised beds
- Transplant tomato seedlings started indoors
- Mulch around heat-loving plants to retain moisture
- Water containers early in the day to prevent heat stress
- Monitor for aphids and treat early if needed
- Start staking tomato and pepper plants
- Thin bean seedlings for better growth
- Add compost to in-ground beds to boost fertility
FAQs
Can I plant tomatoes directly in the ground in April in San Antonio?
Yes, April is a good time to transplant tomato seedlings outdoors as the risk of frost has passed and soil temperatures are warm.
How often should I water container plants during April?
Water containers daily or when the top inch of soil feels dry, as containers dry out faster in warm spring weather.
Is it safe to plant lettuce and spinach in April here?
It's best to avoid cool-season greens like lettuce and spinach in April as rising temperatures can cause them to bolt quickly.
When should I start seeds indoors for pumpkins?
Start pumpkin seeds indoors in April to transplant outdoors in late May when soil is consistently warm.
What soil preparation is recommended for raised beds in April?
Add compost and a balanced fertilizer to raised beds before planting to ensure nutrient-rich, well-draining soil.
Next steps
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