The cannabis plant limit per household in the United States ranges from 2 plants in Maryland to 16 plants in Minnesota, and most legal states allow 6 plants per adult age 21 or older with a hard cap of 12 plants per address. The exact number depends on three things: whether the state counts plants per person or per household, how many plants are flowering versus immature, and whether the grower holds a medical card. States that legalized retail sales but not home cultivation, including New Jersey and Delaware, allow zero plants per household.

Cannabis Home Grow Laws by State Guide

Cannabis plant limit per household by state

These figures cover adult-use home grow unless noted. Medical programs often allow more.

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Do states count plants per person or per household?

Both models exist, and the household number always wins when two adults share an address. California, Michigan, Oregon, and Virginia set a flat limit per residence, so a two-adult home still gets 6, 12, 4, and 4 plants respectively. Alaska, Colorado, Massachusetts, Nevada, New York, and Ohio allow 6 plants per adult but stop the total at 12 per household.

how many plants can you grow legally at home

Do flowering plants count differently than seedlings?

Yes. Several states cap mature or flowering plants separately from immature plants and seedlings. Connecticut, New York, Rhode Island, and Vermont count mature and immature plants in two buckets, and Minnesota allows 8 plants per adult with only 4 flowering at one time. This means a home can hold more total plants than the flowering number suggests.

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Which legal states allow no home grow?

Home cultivation is not permitted for adults in Delaware, New Jersey, and Washington, even though retail cannabis is legal there. Medical-only states such as Florida, Pennsylvania, Louisiana, Arkansas, and Utah also prohibit patient home grow. Cultivation of any size remains a federal offense under the Controlled Substances Act.

Does a medical card change the plant limit?

Often yes. Medical patients may exceed recreational caps in Maine, Maryland, Montana, and Washington, and states like Hawaii, Illinois, and Oklahoma allow home grow only through the medical program. A patient card can also raise the household ceiling when two patients live at the same address, though most states still impose an absolute cap.

Why do states cap plants per household?

Household caps exist to separate legal personal use from unlicensed sales. A per-address limit prevents a shared home from multiplying the allowed plant count into commercial volume, and it gives law enforcement a simple threshold to check. Growers who stay under the cap avoid the diversion and possession penalties tied to oversupply.

What happens if you exceed the household plant limit?

Penalties vary by state, ranging from civil fines to misdemeanor charges when the plant count suggests intent to distribute. Keeping plants tagged, documented, and secured in a locked space helps show personal-use compliance. If you hold a medical card, check whether your state requires plants to be labeled with patient information.