Red Mushrooms in Potted Plumeria: Sign of Overwatering

Q: My potted plumeria has dime-size red mushrooms on the soil and has been declining for weeks. How to get rid of mushrooms?

A: Mushrooms on potting soil indicate it's too soggy. The plant's decline may be from incipient root rot. Remove the plant, dump the soil in your landscape, ensure the drain hole isn't clogged, cover it with screen, refill with fresh potting soil, replant, and support the pot off the ground with three large pebbles. Keep outdoors until frost, then bring inside for winter.