it's greatly inefficient to try unless you take what i speculate from experience to be around 6 plants and perform an extract. you'll yield enough for a bowl or two of opium which you will need to dissolve into only a tablespoon of water or so. then roll a bud in the tablespoon. just one bud. there's a reason why locally grown heroin is not a thing. it's just not a heavy yielding plant. i never cured weed in opium but have grown poppy and witnessed the amount of opium one pod will produce. for better numbers, do a google search on the percent yield opium and work some math out to the numbers you were hoping for. its likely around 1 or 2% dry mass alkaloid content in a potent plant. do an experiment for us? poppy grows a taproot which mean you should plant in a deep narrow container, so i f you use a 5 gal homer pail with holes in the bottom you can grow a few plants in that container and tie the bolting flowers down so to keep your lighting distance tight to the lower leaves. check out farmerfischers grow in the gardening section. he uses rather small containers and a low stress light changing technique. its pretty cool.
