To answer the original question:
- It takes training in landscape design to make meaningful selections of plants and trees for the locale in question (dry, wet, windy, hot, cold, sun, shade, etc.)
- The basic opener for landscape design is considerations of vistas both from the outside and the inside of the property. In this connection decisions are made for providing a favorable long view of the property. In addition, what views do you want to screen from inside? What favorable views do you want to support with open lawn? Landscape design will help the property dominate the neighborhood with judicious screening.
- Provision for useful pavements, walks, small lunch shelters, pleasant views formed from pond, gazebo, remote shaded bench groups, fenced utility zones, etc. Some will differ on this point, but a surrounding fence is a good starting point for landscaping. One plant I worked at was in a no-fence zone. The locals used it for a park afterhours. It was even used for amorous encounters to put it mildly.
- Drainage is sorely neglected in the landscape, but in the industrial setting provisions are made for rain retention ponds. This cannot be done with residential property unless the owner is willing to manage a retention zone. I have come across many homeowners with unwanted rain retention on their properties.
- Sprinklers should be planned for immediate installation or future completion. Separate water meters are an economic necessity to avoid paying sewer costs on water that is not sent to sewer drain facilities.
- Construction costs connected with landscape design can exceed the cost of trees and plants. Budgeting for this is necessary.