Mimosa Tree Native Plants for Pennsylvania Spiraea Japonica easily escapes garden Protect the tree against Spiraea Japonica easily escapes garden settings and naturalizes in a variety of ecosystems Landscapers also use red crepe myrtle in screens They're fuss free and hardy In addition to their aesthetics and other practical applications‚ Mimosa trees are nitrogen fixing trees․ This means that they are capable of improving the soil fertility by converting atmospheric nitrogen into a form that can be absorbed by other types of plants․ Nitrogen fixing trees like the Mimosa are important to an ecosystem because they help improve the soil and provide habitat for a wide range of plant species․ Mimosa trees also provide shelter for birds and helpful insects‚ and are good for wildlife habitat in both rural and urban settings․ Thus‚ one good way for individuals to participate in an environmental movement is to plant a Mimosa tree․ Fast growth and low maintenance requirements make Mimosa an option for those with a busy lifestyle wanting to help create a better world and promote a healthy ecosystem․