A plant count limit is a legal cap on the number of cannabis plants. It appears in home grow rules, medical patient and caregiver rules, and some commercial licences, and it usually comes with a definition of what a "plant" is.
In practice
Definitions vary: some count any rooted cutting or germinated seedling, some count only plants above a size, and some count only flowering plants. That definition shapes how people grow. Under a strict plant count, growers favour fewer, larger plants trained wide (SCROG, mainlining, long veg) rather than many small plants (SOG). Under a canopy-area limit, the opposite can make sense.
Commercial licences often use canopy area instead of plant count, and track individual plants or batches through seed-to-sale systems.
Rules differ by country, state, province and city, and change often. This is a general definition, not legal advice: check local rules.
Don't confuse with
- Canopy limit: a cap on square metres or feet of flowering area.
- Possession limit: a weight limit on harvested cannabis.
Home grow is growing cannabis for personal use at your residence, permitted in some jurisdictions within plant-count, location and security limits.A seedling is a young cannabis plant from emergence of the cotyledons until it has several sets of true leaves, typically the first 2-3 weeks.SCROG (screen of green) trains a few plants under a horizontal net, tucking shoots so the canopy forms a flat, evenly lit layer of many tops.SOG (sea of green) grows many small plants at high density with little or no veg time, each making one main cola, to shorten the cycle.The canopy is the top layer of foliage and buds across a grow, the surface that intercepts most of the light and where yield is mostly made.Seed-to-sale tracking is the regulatory system that records every licensed cannabis plant and batch from propagation through harvest, processing, testing and sale.A personal cultivation limit is the legal maximum a person or household may grow for personal use, usually counted in plants, sometimes in canopy area.Track-and-trace is the ability to follow a regulated product through the supply chain and back to its source, the basis of cannabis tracking and recalls.Cloning is propagating a plant by rooting cuttings from it, producing new plants that are genetically identical to the donor.