more... > Hammond Research Station > Landscape Horticulture > Trees > Trees for Louisiana Landscapes [Image: trees] This publication includes information on conserving existing trees, planting and transplanting, pruning, tree fertilization, street and parking area plantings, tree evaluation, tree lists and a quick tree selection guide. Tree Irrigation During Establishment How long does it take for a newly planted tree to become fully established in the landscape? How much irrigation is required during establishment? Underutilized Trees for South Louisiana Landscapes [Image: silverbell flower] We have many trees recommended for South Louisiana landscapes. Some of these are common and known by home gardeners and green industry professionals, but there are great trees that are less known and underutilized. Here is a list.