Clonal Vigor

Clonal vigor refers to the observed growth strength and resilience of cannabis plants propagated from cuttings rather than seed. While not a terpene in the chemical sense, the term describes a phenotypic trait breeders monitor when establishing stable clone-only lines. Plants exhibiting clonal vigor typically show robust branching, faster establishment post-rooting, and consistent performance across generations of vegetative propagation. This characteristic is particularly relevant in controlled cultivation environments where genetic stability and predictable growth patterns are prioritized. Clonal vigor can diminish over successive generations (a phenomenon called "clone fatigue"), making periodic genetic refreshes or crossbreeding necessary in long-term breeding programs.

Breeders working with elite clones track vigor metrics to maintain line stability and productivity. Selecting cuttings from the most vigorous mother plants is a foundational strategy in stabilizing high-performing cultivars across multiple cultivation cycles.