Why Is This Thing Hanging On Our Wall?!

We found this wonderful thing at a yard sale recently - some sort of small metal trellis with an addition to hold a planter. I had no idea where I would put this when I bought it, but the price was right and I just HAD to have it..... I hung the thing on the wall in the basement, beside another yard sale find, a wonderful old piece off an organ. Why would a person hang such a thing on their basement wall? I'll give you a hint: The ping pong table is nearby.....

Did you guess why I hung this on the wall? Here's a picture of the trellis/planter in use:

I am soooooo smart!!!! Susan