To celebrate Arbor Day, the gang decide to do a great gardening project for Charlie Brown. Unfortunately, Charlie Brown learns that they did it in his baseball diamond, turning it in to a lush garden. With no alternative, he is forced to play against Peppermint Patty's team in that field. However, the bizarre setting seems to be working to his advantage.

The successful comic strip Peanuts, by Charles M. Schulz, was adapted into animated specials since 1965, most of them released on television.