Summary of home cultivation rules in active state medical cannabis programs.

June 27, 2:10 PMPittsburgh History ExaminerDev Meyers

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Alaska

Patients (or their primary caregivers) may legally possess no more than one ounce of usable marijuana, and may cultivate no more than six marijuana plants, of which no more than three may be mature.

California

Under the guidelines, qualified patients and/or their primary caregivers may possess no more than eight ounces of dried marijuana and/or six mature (or 12 immature) marijuana plants.

Colorado

Patients (or their primary caregivers) may legally possess no more than two ounces of usable marijuana, and may cultivate no more than six marijuana plants.

Hawaii

Patients (or their primary caregivers) may legally possess up to 3 ounces of usable marijuana, and may cultivate no more than seven marijuana plants, of which no more than three may be mature.

Maine

Patients (or their primary caregivers) may legally possess no more than one and one-quarter ounces of usable marijuana, and may cultivate no more than six marijuana plants, of which no more than three may be mature.

Michigan

Patients (or their primary caregivers) may possess no more than 12 marijuana plants kept in an enclosed, locked facility or 2.5 ounces of usable marihuana.

Montana

Patients (or their primary caregivers) may possess no more than six marijuana plants.

Nevada

Patients (or their primary caregivers) may legally possess no more than one ounce of usable marijuana, and may cultivate no more than seven marijuana plants, of which no more than three may be mature. 

New Mexico

Patients may legally possess six ounces of medical cannabis (or more if authorized by their physician) and/or 16 plants (four mature, 12 immature) under this act.

Oregon

Patients (or their primary caregivers) may legally possess no more than three ounces of usable marijuana, and may cultivate no more than seven marijuana plants, of which no more than three may be mature.

Also, Senate Bill 1085, which took effect on January 1, 2006, raises the quantity of cannabis that authorized patients may possess from seven plants (with no more than three mature) and three ounces of cannabis to six mature cannabis plants, 18 immature seedlings, and 24 ounces of usable cannabis. However, those state-qualified patients who possess cannabis in amounts exceeding the new state guidelines will no longer retain the ability to argue an "affirmative defense" of medical necessity at trial. Patients who fail to register with the state, but who possess medical cannabis in amounts compliant with state law, still retain the ability to raise an "affirmative defense" at trial.

Other amendments to Oregon's medical marijuana law redefine "mature plants" to include only those cannabis plants that are more than 12 inches in height and diameter, and establish a state-registry for those authorized to produce medical cannabis to qualified patients.

Rhode Island

Patients (and/or their primary caregivers) may legally possess 2.5 ounces of cannabis and/or 12 plants, and their cannabis must be stored in an indoor facility.

Vermont

Patients (or their primary caregiver) may legally possess no more than two ounces of usable marijuana, and may cultivate no more than three marijuana plants, of which no more than one may be mature.

Washington

Patients (or their primary caregivers) may legally possess or cultivate no more than a 60-day supply of marijuana

Information supplied by

The Coalition for Medical Marijuana – New Jersey