Illinois CRTA allows only registered medical-cannabis patients to grow up to five mature plants at home; recreational adult home cultivation is prohibited statewide. Cook County applies the state limits, and the Sheriff enforces the prohibition on recreational home grows in unincorporated areas.
Under 410 ILCS 705 and the Compassionate Use of Medical Cannabis Pilot Program Act, only Illinois Department of Public Health registered medical patients age 21 or older may cultivate up to five plants taller than five inches at their primary residence. Plants must be in an enclosed, locked space inaccessible to those under 21 and out of public view. Adult-use cardholders without a medical registration cannot grow at home, even one plant, anywhere in Illinois. Cook County does not loosen or tighten this rule. The Cook County Sheriff treats unauthorized recreational home grows as Class A misdemeanor or felony cultivation depending on plant count under the Illinois Controlled Substances Act.
Growing without a medical registration, exceeding five plants, growing in a non-enclosed or unlocked space, or letting plants be visible from public property triggers state license revocation for medical patients and criminal cultivation charges for unauthorized growers.
See how Schaumburg's personal cultivation limits rules stack up against other locations.
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