This is an important aspect of trees to remember when planning a new landscape. Trees need room to grow past their potential. This is especially true when considering foundation plantings or planting under and around utility lines. For example, if a tree is suppose to achieve a height of 20 feet tall and 15 feet wide, it should be planted in a place so it has room to achieve a height of 30 feet tall and 25 feet wide. Likewise, if there isn’t room to plan for additional growth, then it would be worthwhile to find a different species that falls under the maximum growth restrictions for the landscape. On many occasions the listed maximum height and spread of a tree is a general guideline, not a fact. There are several factors that go into how well a tree performs in the landscape, and many times if the conditions are good the trees will “outgrow” their listed size.
This simple adjustment during the planning process will save multiple headaches down the road as the tree matures. It will help to keep the trees at safe distances from buildings and potentially hazardous overhead utility lines. Additionally, it will reduce the need for constant pruning and will keep the trees from damaging siding or having unsightly shaping to avoid utility lines.