Planting calendar
July Planting Guide for Detroit, MI: Raised Beds, Containers & In-Ground
In July, Detroit gardeners can focus on warm-season crops and preparing for fall harvests. Plant heat-tolerant vegetables in raised beds, containers, or directly in the ground, while starting some fall crops indoors for transplanting later. Avoid planting frost-sensitive crops as temperatures remain high.
Plant now (quick list)
Bush beans, Cucumbers, Summer squash, Okra, Sweet potatoes, Eggplant, Peppers, Tomatoes (transplants)
Plant now
- Bush beans
- Cucumbers
- Summer squash
- Okra
- Sweet potatoes
- Eggplant
- Peppers
- Tomatoes (transplants)
- Herbs like basil and oregano
Start indoors
- Broccoli
- Cabbage
- Cauliflower
- Kale
- Brussels sprouts
- Collards
- Lettuce
- Spinach
Avoid
- Peas
- Potatoes
- Carrots
- Beets
- Radishes
- Cool-season leafy greens (direct sowing)
- New tomato seeds (direct sowing)
Next 2 weeks
- Monitor soil moisture closely, especially in containers
- Mulch raised beds to retain moisture
- Pinch back herbs to encourage bushier growth
- Watch for pests like aphids and squash bugs
- Begin hardening off fall crop seedlings started indoors
- Fertilize fruiting plants as needed
- Harvest mature crops regularly to encourage production
FAQs
Can I plant tomatoes from seed directly in July?
It's best to start tomato seeds indoors earlier in the season; July is too late for direct sowing in Detroit due to the time needed to mature before frost.
How often should I water raised beds and containers in July?
Water daily or as needed to keep soil consistently moist, especially during hot spells, since containers dry out faster than in-ground beds.
What are good herbs to grow in containers during July?
Basil, oregano, thyme, and mint thrive well in containers and warm summer conditions.
When should I transplant fall crops started indoors?
Transplant fall crops outdoors in late August to early September when temperatures begin to cool.
How can I protect my summer crops from pests in July?
Regularly inspect plants, remove affected leaves, use insecticidal soap if needed, and encourage beneficial insects like ladybugs.
Next steps
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