Because the Arboretum is younger than many of the nation's arboreta, there is still considerable room for growth and development of the gardens as well as its research and education efforts. These are just some of the things that are planned for the Arboretum's future.

The Arboretum has recently completed an update of its 1987 Master Plan for the development of the remaining undeveloped spaces at the Arboretum. The Master Plan also provides for an extension of the Paseo de Flores to encompass the entire extended gardens and for the development of additional gardens.

The master plan calls for the development of a children's garden and horticulture center at the north end of the property. These additions are already being planned. These complexes will contribute to the education both of children and adults concerning plants and their environment.