Social Benefits
Trees have been scientifically known to make everyone, from humans to animals feel better. Even the symbology of the tree depicts a living organism with roots planted firmly into the soil. With deep suited roots and plenty of nurture the tree thrives and grows to expand into sometimes something that resembles larger than life.
As simple as that, trees make you feel good. Visually, they bring harmony to the viewer. They provide oxygen and carbon monoxide, vital for photosynthesis.