so much,if there getting to tall dont prune them bend them over and tie in place,dont trim any shade leaves off there little factorys for the plant if you trim you will slow it down and stress it out stop nutes 2 weeks b4 harvest just flush with water when you have harvested your plants trim all the leaves off save for hash when trimed hang untill dry 5-10 days then 30day cure in air tight jars take lid off for 10 minutes morning and night then blaze your head off.peace.:stoned: