seeds do SOMETIMES contain thc....but it's at a percent of virtually nothing 0.01% i believe....and you could make green dragon with stems assuming you are smoking really good weed that had stems and have a LOT of them....atleast a cup or two but it still woudlnt' be too strong.....you can get more outta stems by smoking them if you get that desperate but that is'nt a good high at all.....harsh as hell and gives me a headache but they're good for a buzz when you ain't had stuff in a long time