In Situ Preservation

In situ preservation refers to the conservation of cannabis genetics within their original or naturalized growing environments, rather than through controlled ex situ methods like seed banks or tissue culture. This approach maintains plants in field, greenhouse, or semi-wild settings where they continue to experience natural selection pressures and environmental variation. In situ preservation is particularly relevant for landrace populations and regionally adapted cultivars that have evolved specific traits over generations. Breeders and conservation programs working with in situ preserved genetics can observe how phenotypes respond to local climate, soil, and pest pressures—information often lost in isolated laboratory or seed storage conditions. This classification differs from seed banking in that living populations rather than dormant seeds serve as the primary genetic repository. I

Breeders leverage in situ preserved landraces to access novel trait combinations and environmental adaptation data that inform new cultivar development. Active in situ populations also allow observation of natural crossing dynamics and trait stability across multiple growing seasons.