The process of growing cannabis requires many seeds of a particular variety to find a phenotype with dominant traits desired by the grower.
These traits include, color, smell , cannabinoid content, and growth characteristics such as resistance to pests and mold, overall height, total flowering time, and average yields.
Growers use pheno-hunting as a way to stabilize hybrid strains. By seeking out phenotypes with specific traits and crossing it with phenotypes with other traits, growers over several generations are able to stabilize the strain to exhibit the desired traits from each parent seed.