i am always requested to plant mums this time of season, and i always do as i'm told . but the thing is, i always plant them in fresh soil, and properly water them afterwards. but afterwards when i drive by, it seems as thouh after the first major bloom of flowers, they look bare. any suggestion to keep these guys blooming? i have some in my yard that turned into little green bushes! i have a job this weekend, and i have to plant about (30) 6" pots, (ontop of every other thing going in the ground) and keep them looking top notch.