HansGoatanswered grow question a year ago High bro, there are 2 ways to check if a plant is ready for harvest. The best and most exact way is to check the trichomes with a pocket microscope x60. When 80% from the trichomes got a milky white colour then it is the ideal time for harvest. The second way (not as good as the first one but the only other way) is to check the white hairs (pistils). When 90% from the pistils are brown then it is time for harvest! Enjoy your harvest buddy!