Planting calendar
July Planting Guide for Detroit, MI: Raised Beds, Containers & In-Ground Gardens
In July, Detroit gardeners can focus on warm-season crops and preparing for fall planting. This is a great time to sow heat-tolerant vegetables and herbs directly in raised beds, containers, or in-ground. Start planning for fall harvests by starting seeds indoors and avoiding plants sensitive to summer heat.
Plant now (quick list)
Bush beans, Okra, Sweet potatoes, Eggplant, Peppers, Cucumbers, Summer squash, Basil
Plant now
- Bush beans
- Okra
- Sweet potatoes
- Eggplant
- Peppers
- Cucumbers
- Summer squash
- Basil
- Swiss chard
- Malabar spinach
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Brussels sprouts
- Kale
- Collards
- Lettuce
- Spinach
- Kohlrabi
- Celery
Avoid
- Peas
- Potatoes
- Cool-season leafy greens like arugula
- Broccoli (direct sowing outdoors)
- Carrots
- Beets
- Radishes
- Onions (direct sowing)
- Garlic
- Asparagus
Next 2 weeks
- Continue planting heat-tolerant crops like beans and cucumbers
- Thin seedlings in raised beds and containers
- Water deeply in early morning or late evening
- Mulch to retain soil moisture and reduce weeds
- Monitor for pests like aphids and squash bugs
- Pinch basil to encourage bushier growth
- Start hardening off indoor seedlings for fall transplant
- Prepare soil for fall crops by adding compost
- Avoid fertilizing heat-stressed plants heavily
- Harvest regularly to encourage production
FAQs
Can I plant cool-season crops directly in July in Detroit?
No, July is too warm for direct sowing cool-season crops. Instead, start their seeds indoors for transplanting in late summer.
How often should I water raised beds and containers in July?
Water daily or every other day depending on heat and soil moisture. Containers dry out faster and may need more frequent watering.
Is it safe to plant tomatoes in July?
Tomatoes can be planted if started indoors earlier, but direct sowing is not recommended in July due to heat and shorter remaining season.
What pests should I watch for in July?
Common pests include aphids, squash bugs, and cucumber beetles. Regular inspection and early intervention help protect your plants.
Can I grow herbs in containers during July?
Yes, herbs like basil, oregano, and thyme thrive in containers and warm July weather with proper watering and sun exposure.
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