Regrowth Phenotype

Regrowth phenotype refers to a plant's capacity to regenerate vegetative growth after harvest or stress events. In cannabis cultivation, this trait is characterized by the ability of remaining plant tissue to produce new shoots and leaves following removal of primary branches or flowering material. Some landrace and heirloom genetics demonstrate stronger regrowth potential than others, influenced by node spacing, internodal length, and axillary bud vigor. Breeders working in outdoor and perpetual-harvest systems often select for this trait to extend crop cycles or enable multiple harvests from single plants. Understanding regrowth capacity is distinct from recovery from environmental stress, though both involve similar physiological mechanisms.

Cultivators and breeders in resource-limited or outdoor environments have historically prioritized regrowth phenotypes to maximize yield from single plants across multiple harvest windows. This trait is particularly relevant in breeding programs focused on sustainable or regenerative cultivation practices.