I've had plants that show trics in the first week. It usualy only shows up in "super indicas" like Snow White X White Widdow and it depends on the light cycle you start with. I pre flower my herb 12/12 for 2 weeks and veggie 24/0 for 2-4 weeks depending on how big i want my yield to be. This ensures more females in the room if you are working with non-fem seeds and can identify males sooner. Hold onto that herb though its definitely good genetics, maybe get a male and make your own strain man.