One plant no trichomes

I've wondered the same there has been times when trichomes feel like they are way early and some that leave it late, the most critical factors for maximum trichome development remain mostly genetics, a stable growing environment with adequate stress helps to illicit increased trichome development. (controlled drought). Genetics are not dictated but expressed, the level of expression is equally (50%) determined by the environment. No need to reinforce trichome development if there is no stress to illicit the increase in demand. What's good for trichomes is not necessarily what's optimal for terpenes. Trichomes being the physical structure but what's far more important imo is the oils that the trichomes contain, that's mostly sulfur.