Disney Fairies Wiki
Vidia's Orchard

The Sour Plum Tree is located at the far end of the Orchard.[1] While its shiny purple fruit looks enticing, they have an extremely sour flavor that makes all but the toughest taste buds pucker. Inside the tree, it is where Vidia lives.

Vidia's home is seen in the first film[2], as Tink arrives there to ask to be trained as a Fast-flying-talent fairy. It is never named there, however.