I have many thriving indoor plants but my recently acquired coleous has mold. The entire top of the pot (dirt area) is covered. Can you please tell me how to fix this. What did I do wrong and can it carry over to my other plants?

Thanks

Mary

The soil with your coleus is staying too wet, or doesn't have good drainage, maybe the pot is too big for the plant (excess soil)
Scoop out the top couple inches and add new with better air circulation around it and water less.
The mold won't hurt the plant, but over-watering can/wet feet might.
The mold will not carry over to your other plants.