Consider size carefully when planting trees. You want to make sure you know how deep the root system will develop and if it will interfere with any underground utilities or the foundation of your house. Trees that need a large area to grow include the Norwegian maple and sycamores. You also want to consider the amount of shade the tree will produce. You may end up blocking an unpleasant view but have your flowers all die as a result of lack of sun from the tree s shade.
Trees also tend to grow in different shapes.
Some grow kind of straight up in what is called a fastigate shape. They can also be cone shaped such as the fir tree or weeping such as the weeping willow. Each shape has its advantages. Consider what you want the tree to do for your landscaping and choose accordingly. Trees also vary in growth rate.