There are several reasons why a homeowner may want to landscape their yard.
The most common being, for outdoor enjoyment. Either they love to garden and want to create a beautiful, bountiful garden, or they love to entertain, but lack the appropriate space.
Another very important reason is to increase property value. A nicely landscaped yard can increase the value by as much as 5%. A professionally designed yard can increase the value by up to 10%.
Other reasons may include the need for lower maintenance, to freshen up a tired landscape or to address drainage issues.
Whatever the reason it pays to get the advice of a professional landscape designer.