Westminster, CO Cannabis Regulations: Home Cultivation (2026)
Key Facts
- Cultivation range fined
- 7-12 plants per adult 21+ (§6-12-2(C))
- Usable-produce cap
- Only what 6 plants yield, for personal use
- Enclosure rule
- Grow area must be enclosed and locked
- Visibility rule
- No open or public-manner growing (§6-12-2(D))
- Standard fine
- Not more than $100.00 per violation
- City property
- All marijuana activity banned (§6-12-4)
Summary
Westminster limits adults 21 and older to growing, processing or transporting between seven and 12 marijuana plants only as a fineable violation, and personal-use possession from the crop is capped at what six plants produce, under Section 6-12-2(C). Growing in an unenclosed, unlocked, or open and public manner is a separate $100 violation under subsection (D).
(C)Any person 21 years of age or older who possesses, grows, processes, or transports more than six marijuana plants but not more than 12 marijuana plants, commits a violation of this Code and, upon conviction thereof, shall be punished by a fine of not more than $100.00. Notwithstanding the limits in Subsection 6-12-2(B), W.M.C., above, a person 21 years of age or older may possess on the premises where the marijuana plants are growing and for personal use only the marijuana produced by no more than six marijuana plants.(D)Any person who grows marijuana in a place that is not enclosed or locked, or grows marijuana in an open or public manner, commits a violation of this Code and, upon conviction thereof, shall be punished by a fine of not more than $100.00.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 12).
Full Breakdown
Section 6-12-2 of the Municipal Code, part of Chapter 12 on marijuana, sets tiered penalties rather than an outright grow ban. 00. 00. 00, and, notwithstanding that plant count, may possess for personal use only the marijuana actually produced by no more than six of those plants. 00. 00 fines that apply to the residential cultivation violations.
Violations & Fines
Exceeding the plant limits or possessing more than six plants' worth of marijuana under Section 6-12-2(C) is a Code violation punishable by a fine of not more than $100.00, as is growing in an unenclosed, unlocked, open or public manner under subsection (D). Growing anywhere on City-owned or City-controlled property is instead a criminal offense under Section 6-12-4, exposing a violator to the general penalty in Section 1-8-1.
Frequently Asked Questions
How many marijuana plants can I grow at home in Westminster?
Does my grow area need to be enclosed?
Can I grow marijuana on city-owned property?
What's the fine for growing too many plants?
Sources & Official References
Other rules in Westminster
Compare Westminster to another location·View the Colorado cannabis regulations overview
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Home Cultivation in Nearby Cities
How other cities in Adams County handle home cultivation.