Planting calendar
July Planting Guide for Detroit, MI: Raised Beds, Containers & In-Ground Gardens
In July, Detroit gardeners can focus on heat-tolerant vegetables and herbs for raised beds, containers, and in-ground planting. It's an ideal time to plant fall crops and start seeds indoors for a late-season harvest. Avoid planting frost-sensitive crops as temperatures can be high and unpredictable.
Plant now (quick list)
Bush beans, Cucumbers, Eggplants, Peppers, Okra, Sweet potatoes, Herbs like basil and oregano, Swiss chard
Plant now
- Bush beans
- Cucumbers
- Eggplants
- Peppers
- Okra
- Sweet potatoes
- Herbs like basil and oregano
- Swiss chard
- Summer squash
- Tomatoes (transplants)
Start indoors
- Broccoli
- Cabbage
- Cauliflower
- Kale
- Lettuce
- Brussels sprouts
- Collards
- Spinach
- Kohlrabi
- Leeks
Avoid
- Peas
- Potatoes
- Carrots
- Beets
- Radishes
- Early spring crops
- Cool-season leafy greens (direct sow)
- Corn (late sowing)
- Onions (seed)
- Garlic
Next 2 weeks
- Mulch to conserve moisture
- Water deeply in early morning
- Pinch back basil to encourage bushiness
- Monitor for pests like aphids and beetles
- Fertilize tomatoes and peppers
- Harvest early-maturing crops regularly
- Thin seedlings started indoors
- Prepare soil for fall planting
- Shade sensitive plants during heat spikes
- Rotate crops in raised beds
FAQs
Can I plant tomatoes directly in the ground in July in Detroit?
Yes, transplanting tomato seedlings in July is possible, but ensure they receive adequate water and some afternoon shade during heat waves.
Is it too late to start lettuce seeds outdoors in July?
Lettuce prefers cooler weather, so it's better to start seeds indoors in July for transplanting in late summer or early fall.
How often should I water container plants during July heat?
Water container plants daily or when the top inch of soil feels dry, as containers dry out faster in hot weather.
What are good herbs to plant in containers in July?
Basil, oregano, thyme, and mint thrive in containers and can be planted or maintained during July.
Should I fertilize my raised beds in July?
Yes, applying a balanced fertilizer or compost mid-season helps replenish nutrients for ongoing vegetable production.
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