I have dragon strand ledges as well.
I installed the top back and side ledges about 10" down from the top give or take an 1" or 2" on the side ledges.
I then took my wandering jew from HD, poked holes on opposite sides of the pot, got a branch a couple inches wider then the pot and zip tied it on.
I then placed the branch attached to the pot catty-corner on top the ledges and zip ties it on.
It looks great!
Pics? Probably going to HD today