Colorado residents are likely to see tighter restrictions on marijuana home grows in 2017. Not only is Denver working on a plan to limit unlicensed recreational and medical grows in private residences, but Governor John Hickenlooper is working on a statewide proposal to battle what he sees as an abuse of Colorado’s constitutional growing allowances.

Under Amendment 20, which legalized medical marijuana in Colorado in 2000, medical users can grow up to 99 plants in their private residences, while 2012’s Amendment 64 allows recreational users to combine their allotted six plants into co-ops, effectively creating large-scale growing operations in which the plants aren’t taxed or tracked by the state.

Hickenlooper’s proposal includes a statewide twelve-plant limit on grows in private residences. Denver already enforces a twelve-plant cap within city limits and is currently researching home grows and discussing possible new ordinances. [Read more at Westword]