Planting calendar
March Planting Guide for Chicago: Raised Beds, Containers & In-Ground Gardens
In March, Chicago gardeners can start planting cool-season crops directly outdoors in raised beds, containers, or in-ground gardens. It's also the ideal time to start warm-season vegetables and flowers indoors to transplant later. Focus on hardy greens, root vegetables, and early herbs now, while preparing for warmer weather crops.
Plant now (quick list)
spinach, kale, lettuce, radishes, peas, onions sets, potatoes, chard
Plant now
- spinach
- kale
- lettuce
- radishes
- peas
- onions sets
- potatoes
- chard
Start indoors
- tomatoes
- peppers
- eggplants
- basil
- broccoli
- cauliflower
- cabbage
- herbs (parsley, thyme)
Avoid
- beans
- corn
- cucumbers
- squash
- melons
- tomatoes (outdoors)
- peppers (outdoors)
- eggplants (outdoors)
Next 2 weeks
- harden off indoor seedlings gradually before transplanting
- prepare soil by adding compost and ensuring good drainage
- monitor soil moisture to avoid waterlogging
- continue planting peas and root crops outdoors
- remove any winter mulch if temperatures consistently rise
- check for early pests and diseases
- start planning summer garden layout
- prune dormant fruit trees
FAQs
Can I plant tomatoes outdoors in March in Chicago?
No, tomatoes are sensitive to frost. Start seeds indoors in March and transplant outdoors after the last frost, typically in mid-May.
When should I start peas outdoors?
Peas can be planted outdoors as soon as the soil is workable in early March, as they tolerate cool temperatures.
How do I prepare raised beds for March planting?
Clear debris, add compost or aged manure, and ensure the soil is loose and drains well before planting.
Is it safe to plant herbs outdoors in March?
Hardy herbs like chives and parsley can be planted outdoors, but tender herbs like basil should be started indoors.
How do I protect early seedlings from late frosts?
Use row covers, cloches, or cold frames to shield young plants from unexpected cold snaps.
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