Ok so one day I logged onto my Balance Wiz, and I check on my Stinkweed plant, and I see this pixie flying above it, and on the Stinkweed status it says "likes: pixie". I'm confused if this may be a new bug or if it's happening to other people, and it's normal. I first saw the pixie about a week or two ago.
Well I had a pixie on my orange dandelion but i learned to ignore it unless it is too abnormal for you. If you dont like the pixie I guess just either skip the plant or dig up the plant and start a new one. I hope I helped. :-) :-D ;)
The pixie means that the you are doing gardening right and has showed up to help the plant grow faster. I was initially confused as well, but later found out that pixies show up on plants that like what you are doing; so if you are attentive they are more likely to show up.
:-) :-D 
;) 
It's normal.