Size

• The University of Florida notes that tree roots extend two to three times wider than the tree's canopy. Prevent pool wall compromise or other root-induced issues by planting trees at least 10 to 20 feet from the swimming pool's edge. Do not plant large, maturing trees, like figs, nearby.
  
  

Types

• Choose trees that mature no taller than 10 to 20 feet. Avoid tree species that are small-leaved, winter deciduous, or bear flowers and fruits that drop. Seagrape, silver buttonwood, fiddleleaf fig, Japanese fern tree and sweet viburnum are options.
  
  

Misconceptions

• Palms, while not true trees, make excellent poolside plants since their roots aren't as problematic, and they evoke a tropical feel while allowing sunlight to reach the pool deck. Choose smaller palms, such as the buccaneer palm, foxtail palm, solitaire palm, adonidia palm and thatch palm, Plant them in small grove clusters.
  
  

Warning

• Keep in mind not all plant species prosper next to a pool. Atmospheric chlorine gas, oversplash and reflected heat and sunlight can negatively affect trees.