Hello Gardeners,

We recently installed a plant wall at my office and I've been having some trouble with the Iron Cross Begonias turning brown and crispy on the edges. I know this is a humidity problem but I can't put a humidifier in my office,so I'm wondering how else I can get humidity around these plants?

The leaves are susceptible to mold, so misting them is out. I have read that the pebble tray is a common way to increase humidity, but since these suckers are stuck to the wall, I can't very well put the pot onto a pebble tray. I don't know what to do.

Do you have any ideas? Maybe put a small pebble tray on the soil next to the plant? Mulch? Moss? Any help is much appreciated!

Thanks,
Jen