How to Select a High-Quality Cannabis Phenotype

Ever wonder why the same strain of cannabis can be slightly different, depending on which store you get it at? A gram of OG Kush from one grower who sells to a particular dispensary will be slightly different from another grower’s OG Kush at the dispensary across town. Although they are the same strain, these are different phenotypes (or “phenos”)—different expressions of the same genetic material.

If two cats—one an orange tabby and the other a black and white calico—have a litter of kittens, some of the kittens will be orange tabbies and some black and white calicos. Some may even be black and white tabbies. So too, do different cannabis phenotypes have different traits from one or both of their parent strains.

When a grower decides to produce a particular strain, they typically get a packet of seeds from a breeder, each one a different phenotype of that strain. After growing each seed, the grower will pick the best one because of its characteristics, picking for yield, bud density, smell, flavor, potency, color, and many more attributes, and discard the others.

This narrowing process usually takes a few generations of selection, and months, sometimes years, but in the end, the best pick will be mass produced for sale, and that’s the cannabis you buy off the shelf at the dispensary.

The Importance of Labeling

An example of the phenotype selection process. Growers typically mark and number each phenotype for tracking purposes. In this case, a grower is selecting OG Kush (OGK) phenotypes. Click to enlarge. (Elysse Feigenblatt/Leafly)

Selecting phenos is a meticulous process. Organization and keeping track of things through the long growing process is imperative. You’ll be taking clones of each phenotype and keeping some

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