This caught my eye too!! When I saw it, the first thing I thought of, and what is still on my mind, is to use that for house plant type vines. Like Syngonium, Epipremnum (Pothos,) Philodendron, and anything with aerial roots. The top would dry out much more quickly, so something like a jade at the top might look interesting. One could add various holiday cacti, various epiphytes, creepers to flow over the sides like Callisia, Tradescantias, Commelina, maybe even some Echeverias or other little succulents toward the top.
This should last for years before repotting was necessary, and possibly allow some vines to be able to make mature leaf forms, a novelty rarely achieved for most vines "in captivity." It would also allow one to have a huge number and mass of plants in a very small footprint of space. It could be as tall as your doorframe/ceiling/budget would allow. The actual tower part could be as skinny or fat as one wanted, filled with possibly different layers of "stuff" if needed to accommodate the different types of plants.
I need to finish some other things I've started for Mother's Day, but am anxious to get started on one of these. Probably best to kick the idea around for a longer time anyway, let the ideas mature...
It's called 'In Living Color'.
