The red/purple calyx's on mine are due to a nute lockout I had going on from over fertilizing I believe.... I have lots of purple at the bottom but no nanners at the bottom.. The top is all green, but filled with nanners, except that one calyx you see is purplish and had a nanner and it was at the top... Just a coincidence I think... I never realized what people meant by plucking, but after I cut off small buds, i realized that you can literally just pull the nanners off and they come right off...