Loveland follows Colorado state law for personal-use marijuana home cultivation. Colorado Constitution Article XVIII §16 (Amendment 64) and C.R.S. 18-18-406 allow each adult 21 or older to cultivate up to six (6) marijuana plants — with no more than three (3) flowering at any one time. C.R.S. 18-18-406.3 (HB 17-1220) caps the household total at twelve (12) plants per residence regardless of how many adults live there, unless registered as a medical caregiver location. Plants must be in an enclosed, locked space and may not be visible from a public place.
Personal-use marijuana home grow in Loveland is governed primarily by Colorado state law. Colorado Constitution Article XVIII, Section 16 (Amendment 64, 2012) and C.R.S. 18-18-406(3)(a) allow an adult 21 or older to grow up to six (6) marijuana plants, with no more than three (3) flowering at any time. C.R.S. 18-18-406.3 (HB 17-1220, 2017) caps a residential property's household total at twelve (12) plants regardless of how many adults live there, unless the home is registered as a medical caregiver residence under Marijuana Enforcement Division rules. Plants must be grown in an enclosed and locked space and may not be visible from a public place. Cultivation is allowed in the primary residence and — with both owner and resident permission — in common areas of multifamily or attached residential buildings. Outdoor home cultivation is permitted only inside an enclosed and locked structure. Renters need landlord permission and remain subject to lease terms. Loveland historically prohibited all marijuana businesses under former LMC Chapters 7.60 and 7.65; in November 2024, City of Loveland voters approved Ballot Question 2H (retail/medical opt-in) and Ballot Issue 2F (5% city excise tax), and City Council is implementing the licensing framework through Title 8 (Local Licensing Code) — second reading of the implementing ordinance was scheduled for November 18, 2025. Sale or distribution of home-grown marijuana remains a state and local offense.
Exceeding the six-plant-per-adult or twelve-plant-per-household limits violates C.R.S. 18-18-406 and 18-18-406.3 and is a state offense — civil infraction up to a level 1 drug misdemeanor or a drug felony depending on plant count. Plants visible from a public place, plants in an unsecured location, or any sale of home-grown product invite both criminal charges and removal/destruction of the grow. Renters may also face eviction under lease terms.
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