I would imagine this would be a highly criticized response, but I have had numerous strains that I exposed to cold (65f or a little less) during night cycles a week or so preceding harvest), along with a cold, extended dark period after harvest, and had if not purple tinges, full blown deep purple develop. This happened in White Lightning (White Widow x Northern Lights), purple elephant (ummm urkle and big bud? not sure but a nice plant), train wreck, and blueberry. They could all have some disposition toward that and the cold just helped it along. It kind of starts to develop in the fan leaves and gradually into the flower....or out of the flower. I don't know why and haven't looked into it. The cold was accidental, unavoidable, or too economical to pass up in all cases. I do not believe there is a change in the quality, but there is certainly a change in the visual appeal to a lot of people (myself included).
. I have 4 different headband phenos, tahoe og, critical og, sugar black rose all coming down soon. I am having such a hard time being patient.
