Loam Notes

Loam notes refer to earthy, soil-forward aromatics commonly detected in cannabis cultivars with certain terpene profiles, particularly those high in myrcene and other sesquiterpenes. This aroma class evokes damp forest floor, mineral undertones, and decomposing organic matter — characteristics often associated with heritage cannabis genetics and certain landrace strains. Loam notes are frequently reported in cultivars derived from Afghanistan, Morocco, and Central Asian breeding populations. Breeders working to preserve classic, terroir-influenced profiles often select for these deep, grounding aromatic qualities. The perception of loam can vary based on curing, storage conditions, and individual olfactory sensitivity.

Cultivators and breeders targeting classic or heritage phenotypes often screen for loam-forward terpene expression as a marker of genetic stability and landrace ancestry. Selection for loam notes typically correlates with retention of robust root development and adaptation traits valued in traditional growing programs.