0 Sharon Atlanta, GA on May 01, 2012 Like Clip I've never seen a yellow mushroom before. Is it detrimental to my plant or o.k. to leave it there? Thanks! Like Clip Like Clip Like Clip Displaying 1 of 6 comments See All Comments Susan S Fredericksburg, VA Sharon, I had some really interesting mushrooms pop up in one of my container gardens about 3 years ago. I tried to post them last night but computer wasn't cooperating!! NOTE: You can drag and drop your photos to reorder them Required Comment Saving...