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Kale planting and harvest dates

Kale Planting Dates in Northern Illinois

Usual kale planting periods in Northern Illinois, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.

Kale dates in Northern Illinois
ActivityWindowSourceLast verified
TransplantingApril 14 to May 14, Aug. 1 to 14source2026-11-11
Kale calendar for Northern Illinois
ItemJanFebMarAprMayJunJulAugSepOctNovDec
TransplantingTransplanting window in AprilTransplanting window in MayTransplanting window in August

What these dates mean in Northern Illinois

Transplanting usually runs about 31 days, from Apr 14 to May 14.

That start date is about 13 days later than the middle of the 3 places in this data set that report kale transplanting dates (Apr 1).

Frost-date caveat: these are published ranges for Northern Illinois. A northern or high-elevation site will run later than a southern or low one, and a cold wet spring can push planting past the window. Planting dates are a general guide; frost dates and local conditions vary. Check your last spring frost and soil temperature, and confirm with your county extension office.

Related guides

Kale dates in other places

Other crops in Northern Illinois

Last reviewed: November 2026. Source: Illinois Extension - When to Plant (Home Vegetable Gardening).