As of September 2020, 17 states and Washington, D.C. had passed some form of home growing laws, be they for medical or adult use.
Comparatively, most states have so far failed to pass social equity laws, with just a handful being considered adequate parameters.
Groups like the Marijuana Policy Project (MPP) say laws with "reasonable safeguards" have not been challenged by any states so far. The MPP suggests secure grow sites away from the public and cultivation caps as adequate parameters.
Like many cannabis laws, states have implemented various regulatory frameworks for home cultivation.
For example, in adult use markets, people over 21 can grow up to four plants in Oregon, while Washington State allows six and Vermont just two.
Medical markets vary as well.
Rhode Island patients and caregivers can grow as many as 12 plants and 12 seedling at a private indoor setting. New Hampshire allows up to three plants and 12 seedlings. In New Mexico, the cap is at 16.
Meanwhile, New York, Pennsylvania and New Jersey are some of the states to ban home cultivation for medical patients.
The U.S. is not the only country dealing with home cultivation concerns. Quebec has been embroiled in ongoing legal battles over home cultivation despite federal law approving up to four plants per household.