My first grow (Indoor) under 250w HPS, I have had a few issues with cold and a rough transition to 12/12. Now, the plant is huge, and is fillingout quite nicely and looks great. I keep waiting for trichromes to show, but no luck. How soon into flowering do trichromes show up?
It really depends on strain , some strains of plants produce trichomes late in the flower period. but you should be seeing some very soon.