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Kansas City, MO Cannabis Regulations: Home Cultivation (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified April 2026

Key Facts

Legal Basis
Missouri Amendment 3 (2022)
Flowering Plants Per Person
6 maximum
Household Maximum
12 flowering plants
Growing Conditions
Enclosed, locked, not publicly visible
Minimum Age
21 years old

Summary

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.

(A) Except for good cause, any consumer, licensed qualifying patient with the exception of non-emancipated qualifying patients, or licensed primary caregiver on behalf of a qualifying patient may obtain authorization to cultivate up to six (6) flowering marijuana plants, six (6) non-flowering marijuana plants fourteen (14) inches tall or more, and six (6) non-flowering plants under fourteen (14) inches tall at any given time in a single enclosed, locked facility... Up to two (2) qualifying patients, who both hold valid qualifying patient cultivation identification cards, may share one (1) enclosed, locked facility. No more than twelve (12) flowering marijuana plants, twelve (12) non-flowering plants fourteen (14) inches tall or more, and twelve (12) non-flowering plants under fourteen (14) inches tall may be cultivated in a single enclosed, locked facility.

Source: Missouri Constitution Article XIV — MarijuanaView official code

Full Breakdown

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.

Violations & Fines

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.

Frequently Asked Questions

How many marijuana plants can I grow at home in Kansas City?
Adults 21 and older can grow up to 6 flowering plants, 6 non-flowering plants, and 6 clones. Households with two or more eligible adults may grow up to 12 flowering, 12 non-flowering, and 12 clones.
Are there restrictions on where I grow at home?
Yes. Plants must be grown in an enclosed, locked facility that is not visible to the general public. Landlords may also prohibit cultivation in rental properties.

Sources & Official References

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