Planting calendar
August Planting Guide for Detroit, MI: Raised Beds, Containers & In-Ground
In August in Detroit, focus on planting cool-season crops for a fall harvest in raised beds, containers, or in-ground gardens. You can sow leafy greens, root vegetables, and herbs now, while also starting some fall crops indoors to transplant later. Avoid heat-sensitive plants as temperatures remain warm but begin preparing for cooler weather.
Plant now (quick list)
Spinach, Lettuce, Radishes, Kale, Beets, Carrots, Swiss chard, Bush beans
Plant now
- Spinach
- Lettuce
- Radishes
- Kale
- Beets
- Carrots
- Swiss chard
- Bush beans
- Herbs like cilantro and parsley
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Brussels sprouts
- Kohlrabi
- Leeks
- Onion sets
- Celery
Avoid
- Tomatoes
- Peppers
- Eggplants
- Corn
- Melons
- Okra
- Sweet potatoes
Next 2 weeks
- Direct sow fall greens in raised beds and containers
- Transplant started brassicas outdoors after hardening off
- Mulch around plants to retain moisture during warm days
- Water consistently to support new seedlings
- Monitor for pests like aphids and caterpillars
- Remove spent summer crops to prepare beds
- Fertilize leafy crops with nitrogen-rich fertilizer
FAQs
Can I plant tomatoes in August in Detroit?
It's best to avoid planting tomatoes in August as the growing season is winding down and they may not mature before the first frost.
How do I protect fall crops from early frost?
Use row covers or cold frames to shield young plants from frost and extend the growing season.
Are containers suitable for fall planting?
Yes, containers warm up quickly and are great for cool-season crops like lettuce and spinach in the fall.
When should I start brassicas indoors for fall?
Start brassicas indoors in mid to late August to transplant outside in early September.
What soil preparation is needed for fall planting?
Amend soil with compost and ensure good drainage to support healthy root development for fall crops.
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