Planting calendar
May Planting Guide for Dallas, TX: Raised Beds, Containers & In-Ground Gardens
In May, Dallas gardeners can focus on warm-season vegetables and herbs for raised beds, containers, and in-ground planting. This is an ideal time to plant heat-tolerant crops as the risk of frost is minimal but watch for early summer heat stress. Choose crops that thrive in full sun and well-drained soil.
Plant now (quick list)
Tomatoes, Peppers, Eggplants, Okra, Sweet potatoes, Basil, Cucumbers, Southern peas
Plant now
- Tomatoes
- Peppers
- Eggplants
- Okra
- Sweet potatoes
- Basil
- Cucumbers
- Southern peas
- Melons
- Zucchini
Start indoors
- Winter squash
- Pumpkins
- Brussels sprouts (for fall transplant)
- Broccoli (for fall transplant)
- Cauliflower (for fall transplant)
- Kale (for fall transplant)
- Collard greens (for fall transplant)
- Cabbage (for fall transplant)
Avoid
- Cool-season crops like lettuce and spinach (will bolt quickly)
- Peas (best planted earlier in spring)
- Radishes (heat causes poor flavor and bolting)
- Carrots (may struggle in hot soil)
- Potatoes (planting now risks disease)
Next 2 weeks
- Mulch around plants to conserve moisture
- Monitor soil moisture closely in containers
- Begin regular fertilization for heavy feeders
- Watch for pests like aphids and caterpillars
- Provide shade during hottest afternoon hours if possible
- Thin seedlings to prevent overcrowding
- Stake or cage tomatoes early
- Water deeply but infrequently to encourage root growth
FAQs
Can I plant tomatoes directly in the ground in Dallas in May?
Yes, May is a great time to transplant tomato seedlings into the ground as the danger of frost has passed and soil temperatures are warm enough.
How often should I water container plants during May in Dallas?
Containers typically need daily watering in May due to heat and wind, but always check soil moisture before watering to avoid overwatering.
Is it necessary to fertilize raised bed vegetables in May?
Yes, applying a balanced fertilizer or compost helps support the rapid growth of warm-season crops during this active growing period.
What pests should I watch for in May in Dallas gardens?
Common pests include aphids, whiteflies, and caterpillars; regular inspection and early treatment help prevent damage.
Can I still plant cool-season crops in May in Dallas?
It's best to avoid planting cool-season crops in May as the heat will cause them to bolt or decline quickly.
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.