Planting calendar
August Planting Guide for Indianapolis Gardens: Raised Beds, Containers & In-Ground
In August in Indianapolis, focus on planting cool-season crops for a fall harvest. You can sow leafy greens, root vegetables, and herbs directly in raised beds, containers, or in-ground. Start indoor seedlings for fall and winter crops to extend your garden’s productivity.
Plant now (quick list)
Spinach, Lettuce, Radishes, Kale, Beets, Carrots, Swiss chard, Turnips
Plant now
- Spinach
- Lettuce
- Radishes
- Kale
- Beets
- Carrots
- Swiss chard
- Turnips
Start indoors
- Broccoli
- Cauliflower
- Cabbage
- Brussels sprouts
- Kohlrabi
- Collard greens
Avoid
- Tomatoes (late August direct sowing is risky)
- Peppers
- Eggplants
- Corn
- Beans (pole and bush)
Next 2 weeks
- Continue sowing quick-maturing greens
- Thin seedlings for better air circulation
- Water consistently during dry spells
- Add mulch to retain soil moisture
- Start hardening off indoor seedlings
FAQs
Can I plant tomatoes in August in Indianapolis?
It’s not recommended to plant tomatoes directly in August as they may not mature before the first frost. Focus on cool-season crops instead.
When should I start broccoli seedlings indoors?
Start broccoli indoors in mid to late August to transplant outdoors in early fall for a successful harvest.
How do I protect fall crops from early frost?
Use row covers or cold frames to shield young plants from early frost and extend the growing season.
Are containers suitable for fall crops?
Yes, containers are great for growing leafy greens and root vegetables in late summer and fall.
Should I fertilize my garden in August?
Apply a balanced fertilizer or compost to support fall crop growth, especially in raised beds and containers.
Next steps
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