There is no single legal cannabis plant count in the United States. Federal law sets no personal home grow allowance, so the number of plants you may legally keep comes from state law, and limits range from zero to about 12 plants per adult or per household. CBD sold nationwide comes from hemp, which follows separate licensing rules rather than a personal plant count.
Is there a federal legal limit on cannabis plants?
No. Cannabis remains a Schedule I controlled substance, so federal law prohibits cultivation no matter how few plants you grow. The 2018 Farm Bill removed hemp, defined as cannabis testing at or below 0.3 percent THC, from that definition and placed it under USDA-regulated production.
Cannabis Plant Growing Limits: How Many Can You Legally Grow?
That means a home grower has no federal plant count to rely on. Legality, plant numbers, and penalties all come from the state where the plants sit.
Does the 0.3 percent THC rule create a hemp plant count?
Not for individuals. Hemp producers must hold a USDA-approved state, tribal, or federal license, and they report acreage and crop lots instead of a personal plant limit. Any plant that tests above 0.3 percent THC is non-compliant and must be disposed of under program rules.
How many cannabis plants can you legally grow at home?
State recreational limits commonly fall between 4 and 12 plants, counted per adult, per household, or both. Examples of published limits include:
- California: 6 plants per private residence for adults 21 and older.
- Colorado: 6 plants per adult, capped at 12 per household.
- New York: 6 mature and 6 immature plants per adult, capped at 12 per household.
- Ohio: 6 plants per adult, capped at 12 per household.
- Oregon: 4 plants per household for recreational growers.
- Virginia: 4 plants per household.
- Maryland: 2 plants per person, capped at 4 per household.
- Florida and Illinois: no recreational home grow.
These numbers change through legislation and ballot measures, so confirm the current figure before you plant. Cities and counties can also be stricter than state law.
Do medical cannabis patients get a higher plant count?
Often yes. Medical programs in states such as Arizona, Michigan, Montana, and New Mexico allow registered patients or caregivers to grow more plants than recreational rules permit, sometimes 12 or more per patient.
Some states allow a physician to authorize an even higher count based on documented need. Others, including Florida, permit medical cannabis use but still ban home cultivation entirely.
Does the plant count include seedlings and immature plants?
It depends on how your state defines a plant. New York and several other states count mature and immature plants separately, which lets growers keep clones or seedlings alongside flowering plants. Other states count every rooted plant, including small starts.
Unrooted cuttings and seeds usually fall outside the count, but not always. A common mistake is keeping extra clones past the point of rooting and pushing a legal garden over the limit.
What happens if you exceed the legal plant count?
Penalties scale with the number of plants and the state's framework. Going slightly over a legal limit can bring a civil fine, while larger overages can be charged as misdemeanors or felonies. Commercial license holders can face fines, plant seizure, or loss of license for exceeding their approved canopy or plant count.
Landlords, HOAs, and lease agreements may prohibit cultivation even where state law allows it. Rental terms and local zoning often control in practice.
How do you confirm your legal plant count?
- Check your state cannabis regulatory agency website for current cultivation limits.
- Read your state's medical program rules if you hold a patient or caregiver card.
- Review city and county ordinances, which can be more restrictive.
- Check your lease, HOA rules, and any possession limit tied to harvested flower.
Plant counts and possession limits are linked in most states, so a legal garden can still produce an illegal amount of dried cannabis at harvest time.
Do plant count limits apply to people growing CBD hemp?
Personal hemp plant counts generally do not exist. Hemp is an agricultural crop grown under a license, with compliance based on THC testing, sampling, and reporting rather than a set number of plants.
Consumers buying CBD do not interact with plant count rules at all. Those limits apply only to people cultivating cannabis or hemp plants.