The late ripening sativa strains seem to produce the most. Probably the best for production and strength is sour diesel. If grown to FULL maturity outdoors and dried properly it will also have a very decent flavor. The purple strains will mature sooner but will have a smaller yield. To get the best results buy the best clones you can now keep them vegging through the winter taking as many cuttings as possible then put them out the last week of May. Also a 5' deep by 5' in diameter hole filled with FoxFarms products can yield up to 10 lbs of buds form one plant. I met a fellow who averages 4 lbs per plant and that is purple kush that is not known as a large producer.:stoned: