I have a beautiful ficus tree that has been thriving for me over the last 6 years. It is in a large container standing right next to my patio doors. It loves this spot so I never move it, other that to rotate it towards the light. This morning I noticed that 3 yellow mushrooms have sprouted in the pot. Can anyone tell me how and/or why this has happened. It is a mystery to me how these mushrooms could grow there. I don't over-water this tree, since it is happiest when it's allowed to dry out between drinks. I am a newbie to this forum, and will be appreciative of any feedback sent. Thanks!