This is a list of selected strains available commercially that can potentially contain 20+ % THC. The info on THC % is mostly courtesy of the seed banks, but we also checked available public results from independent lab tests and have selected stains based on this data too. In addition, we have only included strains from established breeders, so that the likelihood of data matching actual results is within an acceptable range.
Most cannabis strains have a sliding scale range of THC content from a lowest to highest % (which is why cuttings from exceptional plants are prized). However, many seed banks do not indicate an approximate range and may use the highest test result only. Where available, we have researched and included lab results for the highest and average THC % to 'Keep It Real'. Don't forget that the effect of a strain also depends on many other factors such as the overall cannabinoid profile, growing conditions, the harvesting and curing method, and not least your mind-body reaction and THC-tolerance. If your THC-tolerance is high the healthiest solution is to stop smoking for a week and to moderate your consumption long-term. Tolerance will also build up faster the more potent your herb is and when there is minimal variation between plants in a strain. Medical users are less affected because they still benefit from THC even if the psychoactive "high" effect decreases over time.
Click on 'More Details' for strain info and medical potential.
Select quantity and feminized/regular version from drop-down list.