Purple colouring comes down to anthocyanin genetics far more than temperature, though a ten degree night drop can bring it out in lines that already carry it. Chasing colour by chilling a tent usually just slows ripening, and the strain listings on https://kushindicaseeds.com say plainly which ones colour up on their own. It has no bearing on potency. People still pay attention to it because it photographs well.
Purple colouring comes down to anthocyanin genetics far more than temperature, though a ten degree night drop can bring it out in lines that already carry it. Chasing colour by chilling a tent usually just slows ripening, and the strain listings on https://kushindicaseeds.com say plainly which ones colour up on their own. It has no bearing on potency. People still pay attention to it because it photographs well.