Planting calendar
July Planting Guide for Washington, DC: Raised Beds, Containers & In-Ground Gardens
In July, Washington, DC gardeners can focus on heat-tolerant vegetables and preparing for fall crops in raised beds, containers, and in-ground gardens. This is a great time to plant warm-season crops and start seeds indoors for cooler weather varieties. Be mindful of summer heat and water needs to keep plants thriving.
Plant now (quick list)
Bush beans, Sweet potatoes, Okra, Peppers, Eggplant, Southern peas, Malabar spinach, Swiss chard
Plant now
- Bush beans
- Sweet potatoes
- Okra
- Peppers
- Eggplant
- Southern peas
- Malabar spinach
- Swiss chard
- Herbs like basil and oregano
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Brussels sprouts
- Kale
- Collards
- Lettuce
- Spinach
Avoid
- Tomatoes (direct sowing late July)
- Corn (late planting risks poor yield)
- Potatoes (harvest in summer, avoid planting now)
- Cool-season crops outdoors (heat stress)
- Seedlings sensitive to heat without shade
Next 2 weeks
- Transplant started brassicas to garden
- Mulch beds to retain moisture
- Water containers daily during heat waves
- Pinch back herbs to encourage bushiness
- Watch for pests like aphids and caterpillars
- Succession sow bush beans every 2 weeks
- Fertilize heavy feeders like peppers
- Shade young seedlings during peak sun hours
FAQs
Can I plant tomatoes outdoors in July in Washington, DC?
It's best to avoid planting tomatoes outdoors in July as the heat can stress young plants and reduce fruit set. Instead, focus on maintaining existing plants or start fall crops.
How often should I water container plants in July?
Container plants typically need daily watering during hot July weather, sometimes twice daily if temperatures are very high.
What are good fall crops to start indoors in July?
Start brassicas like broccoli, cauliflower, cabbage, and kale indoors in July to transplant outdoors in late summer for a fall harvest.
Is mulching important in July?
Yes, mulching helps retain soil moisture, regulate temperature, and reduce weed growth during hot summer months.
Can I plant lettuce outdoors in July?
Lettuce is sensitive to heat and may bolt quickly if planted outdoors in July; it's better to start it indoors and transplant in late summer.
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