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Mimosa is a fast-growing small tree with very attractive pink pin cushion-like flowers in summer. This species has tropical-like foliage (bipinnately compound foliage with very small leaflets) that confers a very fine texture to the tree. This species is quite tolerant of drought, poor soils, and salt. However, there are two major issues concerning this species. First, this species is susceptible to a lethal soil borne fungus (Fusarium oxysporum f. sp. pernicosum; see Fusarium Wilt of Mimosa by E. A. Bush at http://pubs.ext.vt.edu/2811/2811-1020/2811-1020.html for details. Thus, mimosa can be relatively short lived if this disease is prevalent in the area. Second, this species is considered an invasive species by NatureServe. The U.S. invasive species impact rank for mimosa is high/low with the following description: “Often a plant of human-disturbed areas (roadsides, etc.), but also affects naturally scoured riparian areas and forest edges. It is having some serious impacts on biodiversity in parts of the southeastern U.S.” (see reference at end of article).
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October 2, 2018