Frost Coverage Patterns

Frost coverage patterns refer to the distribution and density of trichomes (resin glands) across cannabis flower surfaces, leaves, and stems. These crystalline structures vary widely between cultivars—some strains display heavy, uniform trichome coating ("frosty" phenotypes), while others show sparse or clustered distribution. Trichome density and placement are heritable traits influenced by both genetics and environmental conditions during flowering. Documentation of frost patterns is common in breeding records, as visual trichome coverage serves as a rough indicator of resin production potential. Understanding these patterns helps breeders identify parent plants and select for consistent trichome expression across generations. Frost coverage phenotypes range from completely transparent to densely opaque, with each pattern reflecting underlying resin biosynthesis characteristics.

Breeders select for frost coverage patterns as a visible marker of resin-producing genetics, using consistent trichome density to identify stable cultivars and track inheritance through crosses. Heavy frost coverage in parent plants often (though not always) correlates with higher resin yield, making it a practical field-selection criterion during breeding programs.