right, what they said: there are some strains that naturally have more cbd/cbn, start with one of those like strawberry haze or blueberry and treat them right, but take them down after the trichs are 90% amber (or two weeks later than what the breeder says) and you should be couch locked in heaven... also pulling them late tends to make them a little more sleepy-time than earlier harvests... if you have the time and space, i'd say put 10 beans in the ground (ALL SAME KIND or clones if you prefer) and pull them within a couple days of each other... that way you can customize your harvest to meet your needs... hope it helps...