Doraemon: Nobita to midori no kyojinden

Nobitas troubled about what to do with his zero test marks once again. A gust of wind scatters his test papers and he falls into a garbage dump trying to gather them together again. There he finds a young withered tree that caught one of his papers and he decides to take it home. He tries to plant it in his garden but gets caught by his mother who doesnt allow him to grow it.