Cannabis Seeds: What Affects THC Levels in Cannabis Plants?
Cannabis Seeds: What Affects THC Levels in Cannabis Plants? Many growers focus on one number when choosing cannabis seeds : THC percentage. But what actually determines how much THC your plant produces? Is it purely genetic — or can environment dramatically change the outcome? The truth is: THC levels are influenced by a combination of genetics and grow conditions. Even high-THC cannabis seeds will not reach their full potential without the right environment. At Discount Cannabis Seeds, we help growers understand how to maximise plant performance. This guide explains what truly affects THC levels in cannabis plants. 1. Genetics (The Foundation of THC Potential) . Genetics determine the maximum THC potential of a plant. If cannabis seeds are bred from high-resin, high-cannabinoid parents, they may have: 20–30% THC potential Heavy trichome production Dense resin glands Strong terpene expression However: Genetics set the ceiling — environment determines how close you get to it...