First of all I would like to say hello to everybody..I'm a newbie...To my question or comment...I grow outdoors in the midwest and have great results 7-8 foot plants as big as christmas trees 1lb per ,blueberry skunk 10 cross. well anyway I fertilize with blood meal and bone meal mix and a little miracle grow every 2 weeks and this makes them grow like crazy.I mean fast.Now the problem I have is after flowering for 2 months the topps get so heavy they tend to want to break the stock,is there anything I can add to the mix to make them stronger?other than staking them up.I grow in farmland and if the farmer see's them like that they'll know.