Im putting my "potters" into my great stuff background. I plan on putting smaller growing plants in these. They are 5"-6" deep and about 4"-5" a round, tupperwear containers is what they were. Is this sufficient enough for most plants? The larger taller growing plants will be planted in the bottom of course. Also for the "air plants." Do you just plant those in a type of moss or something? Ive seen them planted on types of wood but im creating ledges as well.