Bull, those little rooting pots are great! Do you know where she got them from?[/QUOTE
http://www.manhattanbonsai.com/catalog1_i1075731.html?catId=56743
I think she used the link above,but many other online merchants sell them.
It is really impossible to mess up when using these.If you want to check on the roots you just look thru the plastic.I think they probably allow for a larger airlayer as I got five of the big ones that I am using for trees and 10 of the small pots (crotons) . I have layers on some big limbs that I will be removing next month.I will let you know how it worked out.