Native trees planted in urban areas in Florida survive at higher rates over a four year study period when they are irrigated.
(2010) Urban Greening Volume 13, Issue 4. University of Florida determined that nursery stock size and year-one maintenance (especially irrigation) after planting, combined with the planting season were drivers to successful large-scale tree planting projects.
A 2010 study conducted by the University of Florida that took a look at data from the Florida Forest Service for 2,354 Quercus virginiana (live oak), Taxodium distichum (bald cypress) and Magnolia grandiflora (Southern magnolia) trees planted in 24 cities between 2005 and 2009.
Automatic irrigation was a major factor in survival and growth for M. grandiflora. At sites with automatic irrigation 97% survived vs. 74% where irrigation was not automatic.