at the very minimum you have to water them. i donno where abouts your growing but im pretty sure that your summer months get kinda dry at least for a few weeks. some good fertilizer and you coming out to water them once a week and it should work for the most part. best thing to do is if you wanna leave it alone is find a really nice hidden area and plant as many as possible but make sure there far enough away from each other so males don't pollinate the buds. but since your gonna use fem'd seeds just plant as many as you can and at the very min water them once a week