I got 70 free bags of miracle grow nursery select from a friend.I am going to grow 70 plants in 5 gallon grow bags.Do you think it will be ok for established clones?Ive used it twice before with good results.I just wont put plants in the soil until they have a good root mass.What do you guys think.The bag says that it feeds for 3 months.Which is almost perfect.June to September sometime,thats 4 months,and some time to flush?