Flushing marijuana plants prior to harvest is said to remove the salts and nutrients from the flowers and produce a smoother burning end product. This should be done in conjunction with a harvest BEFORE sunrise (or start of light cycle) for the same reason, to reduce nutrients in the flower at harvest time. Leaves may yellow after flushing and comments are appreciated on your experiences. This is a Jack Herer / Lemon Kush hydrid that was pollinated by a hermied Krumb Cake. All 18 seeds sprouted and were male, 8 have been harvested thus far using outdoor winter flowering in southern CA. These were planted on 9/19/2019. Flower cycle began December 8th with an extended day of darkness.