The mimosa or silk tree (Albizia julibrissin) is an invasive species found growing in woodlands, along roadsides, and backyards. It is believed that the mimosa tree was brought to the United States in the 1700s by Andre Michaux, a French botanist. This tree is native to the Middle East and Asia and is a fast-growing tree, often reaching heights of 50 feet. It is adorned with pink blooms that usually appear May through July. The flowers are delicate and long with clusters of silky pink threads. They attract butterflies, bees, and hummingbirds. The leaves of the mimosa tree have a fern-like appearance. While this tree may be beautiful, it is also a highly invasive species that threatens the southern landscape.