In this photograph taken Saturday, April 25, 2015, grow lights turn the color of marijuana plants under cultivation to yellow as a contingent of lawmakers, their staffers and a handful of lobbyists toured one of two retail and grow operations for both medical and recreational marijuana in northeast Denver. Colorado's unusual tax law is forcing the state to suspend taxes on recreational marijuana for one day, Sept. 16, during which a 10 percent sales tax and 15 percent excise tax will not be collected. (AP Photo/David Zalubowski)

AURORA | Residents will be able to grow fewer recreational marijuana plants in their homes under a measure proposed by Aurora police.

In this photograph taken Saturday, April 25, 2015, grow lights turn the color of marijuana plants under cultivation to yellow as a contingent of lawmakers, their staffers and a handful of lobbyists toured one of two retail and grow operations for both medical and recreational marijuana in northeast Denver. Colorado's unusual tax law is forcing the state to suspend taxes on recreational marijuana for one day, Sept. 16, during which a 10 percent sales tax and 15 percent excise tax will not be collected. (AP Photo/David Zalubowski)

At a regular city council meeting Monday Aurora City Council members voted 8-1 in favor of an ordinance that will curtail the number of marijuana plants in any given residence in the city to 12 plants.

Under the measure, the city will cap each household at 12 plants, and will allow half of those plants to be flowering at any given time. That’s a reduction from the current ordinance which allows six plants per resident in a home.

Councilman Bob Broom was the lone dissenting vote.

Police and fire officials in Aurora have reported problems caused by people growing too many plants in their homes. They said residents with a large number of plants are mixing harmful chemicals and fertilizers, and that the high humidity level in some homes, especially multi-family units, is causing mold to form.

Though the majority of cities in the state defer to Amendment 64 regulations — which allows six plants per resident over 21 years old —  Aurora’s proposed measure is similar to what has been implemented in Denver, Boulder and Lafayette.