The leaves have turned yellow.

https://pixabay.com/th/photos/%E0%B8%9A%E0%B8%8A-%E0%B8%A4%E0%B8%94%E0%B9%83%E0%B8%9A%E0%B9%84%E0%B8%A1%E0%B8%A3%E0%B8%A7%E0%B8%87-%E0%B9%83%E0%B8%9A%E0%B9%84%E0%B8%A1-%E0%B9%83%E0%B8%9A%E0%B9%84%E0%B8%A1%E0%B8%A3%E0%B8%A7%E0%B8%87-10584/