Planting calendar
May Planting Guide for Dallas, TX: Raised Beds, Containers, and In-Ground Gardens
In May, Dallas gardeners can focus on warm-season vegetables and herbs that thrive in rising temperatures. Plant heat-tolerant crops directly in raised beds, containers, or in-ground, while starting some late-season crops indoors. Avoid frost-sensitive plants early in the month and prepare for the summer heat.
Plant now (quick list)
Tomatoes, Peppers, Eggplants, Okra, Sweet potatoes, Basil, Cucumbers, Squash
Plant now
- Tomatoes
- Peppers
- Eggplants
- Okra
- Sweet potatoes
- Basil
- Cucumbers
- Squash
- Beans
- Melons
Start indoors
- Pumpkins
- Winter squash
- Cabbage (for fall transplant)
- Broccoli (for fall transplant)
- Cauliflower (for fall transplant)
- Kale (for fall transplant)
Avoid
- Cool-season greens like spinach
- Peas
- Radishes
- Carrots
- Beets
- Potatoes
- Lettuce
- Broccoli (direct sow now)
- Cauliflower (direct sow now)
Next 2 weeks
- Monitor soil moisture closely as temperatures rise
- Mulch raised beds and containers to retain moisture
- Begin fertilizing warm-season crops every 2-3 weeks
- Harden off indoor seedlings before transplanting
- Watch for pests like aphids and spider mites
- Provide shade for young plants during hottest midday hours
- Ensure good drainage in containers to prevent root rot
FAQs
Can I plant tomatoes directly in the ground in May in Dallas?
Yes, May is ideal for transplanting tomatoes outdoors in Dallas as the risk of frost is minimal and soil temperatures are warm.
Should I water raised beds differently than containers in May?
Containers dry out faster than raised beds, so they typically require more frequent watering, especially as temperatures increase.
What vegetables should I avoid planting in May in Dallas?
Avoid cool-season crops like spinach, peas, and lettuce as they may bolt or struggle in the heat.
Is it necessary to mulch my garden in May?
Yes, mulching helps retain soil moisture and keeps roots cooler during hot Dallas days.
When should I start fall crops indoors in Dallas?
Start fall crops like cabbage, broccoli, and cauliflower indoors in May to transplant in late summer for a successful fall harvest.
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