Beginner Gardening: I think my plant needs help...., 1 by mnms222

mnms222 wrote:
A while ago I noticed the top of the soil of this plant was white. I assumed it was probably from the insect spray I applied to kill the gnats. Well, now there white fungus growing on the soil!! The plant seems to be perfectly healthy. Still sprouting new leaves and flowers. What do I do about this? I have about 13 plants and this is the only one showing these signs. Any help would be much appreciated!