Looking for a hardy tree that can withstand poor soils and wet conditions? Look no further than the Alnus firma, also known as the Japanese Green Alder or Firma Alder. This small tree is native to Japan and is known for its ability to tolerate air pollution, making it a great choice for planting alongside highways as a hedge or windbreak. Despite its hardiness, the Alnus firma also boasts beautiful green leaves that add a touch of natural beauty to any landscape. So why wait? Add the Alnus firma to your garden today and enjoy its many benefits for years to come.