Although we can sell our cactus for ornamental purposes only, our opinions on this issue are based on common botanical knowledge as well as the shared experiences of others.   Research indicates that the sought after alkaloids in San Pedro cactus are increased by the cactus as a defense mechanism in response to some kind of stress. When a San Pedro cactus (as with many other herbs, plants and cacti) is stressed, a response is triggered and the cactus produces bitter tasting alkaloids near its surface to deter predators like insects and rodents from eating it. It may also cause it to sprout new growth. Its a survival technique for the cactus. Some succulents and cacti are water deprived to bring…