Planting calendar
August Planting Guide for Chicago Gardens: Raised Beds, Containers & In-Ground
In August in Chicago, focus on planting cool-season crops that will mature before the first frost. This is a great time to sow leafy greens, root vegetables, and herbs in raised beds, containers, or directly in the ground. Start some fall crops indoors to extend your harvest into late autumn.
Plant now (quick list)
Spinach, Lettuce, Radishes, Kale, Carrots, Beets, Swiss chard, Turnips
Plant now
- Spinach
- Lettuce
- Radishes
- Kale
- Carrots
- Beets
- Swiss chard
- Turnips
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Brussels sprouts
- Kohlrabi
Avoid
- Tomatoes
- Peppers
- Eggplants
- Corn
- Beans
Next 2 weeks
- Continue sowing quick-maturing greens like arugula and mustard
- Thin seedlings for better airflow and growth
- Water consistently to prevent heat stress
- Mulch to retain soil moisture
- Watch for pests like aphids and caterpillars
FAQs
When is the first expected frost date in Chicago?
Typically, the first frost occurs around mid-October, so plan fall crops to mature before then.
Can I still plant warm-season crops in August?
It's best to avoid planting warm-season crops now, as they won't have enough time to mature before frost.
How often should I water raised beds and containers in August?
Water daily or as needed to keep soil consistently moist, especially during hot spells.
Is it necessary to start seedlings indoors for fall crops?
Starting certain brassicas indoors in August helps ensure they mature before frost and improves transplant success.
What are good companion plants for fall vegetables?
Herbs like dill and cilantro can help deter pests, and planting garlic nearby can improve overall plant health.
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