Missouri legalized recreational marijuana through Amendment 3 in November 2022, which permits adults 21 and older to cultivate marijuana at home for personal use. Kansas City follows the state constitutional provisions allowing home cultivation of up to six flowering plants per person with a maximum of 12 flowering plants per household.
Under Missouri Constitutional Article XIV (Amendment 3), adults 21 and older may cultivate up to six flowering marijuana plants, six non-flowering plants, and six clones at home. Households with two or more adults may grow up to 12 flowering plants, 12 non-flowering plants, and 12 clones. Plants must be grown in an enclosed, locked facility not visible to the public. Home-grown marijuana cannot be sold and is for personal use only. Kansas City does not impose additional restrictions beyond the state constitutional provisions on home cultivation.
Exceeding plant limits may result in civil fines under state law. Growing marijuana visible from public areas or without proper enclosure can result in local code enforcement action. Sale of home-grown marijuana is a criminal offense. Landlords may prohibit cultivation in rental agreements.
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