flush and trichomes color

yes color will change with flushing, flush your plant and keep checking tris, the tris will turn more amber with time, by flushing you will be ready to harvest when the plant is ready, if you start a flush when the tris are amber you will lose your harvest window and the thc will not be as strong as it would had you harvested a week before. i do a 3 week flush so if the flower time is for 9 weeks i start at about mid 6th week, or if its and 8 week flower i will start at around the end of the 5th week, this way i know that when the plant is ready im ready. if you want to use ice cold water you can, this helps with any cool fades and colors the strain may have, like purple and some times blues. some strains dont have much color, the fan leaves fade and turn yellow and die off, all normal. your going after those buds and you want them smooth when you smoke them