Keep reading Phil. Genes does everything. There are strains that purple up in 80f.
Dont misunderstand my words. I agree, the genetics must be present. However, I have one phenotype of super lemon haze, grown from seed, that will partially purple. Its strange. Befor I said that with the wide hybridizatioon of genetics, it is likely that somewhere in its heritage lies an afghani, the source of purple. Like asians with green eyes, only possible if there are two non asians present in ones heritage. With that said, wven with the genetics present, a poorly grown purple plant might not purple. When I first started growing amd had a lesser understanding I had difficulty getti.g my purps to purple. The care that you give a plant, which is also its environment, is dependant on its ability to purple. Genetics in conjunction with environment. The genetics are set when its growing, the rest, the environment, is up to you. Gdp, purple urkle, purple kush, purple cadillac, gods.gift, pk x ak47, these are all strains that I have grown having someti me s gotten them to purple, and other times havent gotten thwm to purple. If environment was irrelevant and genetics.were.all thats important, then why would this happen. I have done my reading, dont be so quick to pass judgement on others.