Silktree Mimosa. Albizia julibrissin, Fabaceae Family ( Pea ),Silktree Mimosa: Also called Silk Tree, Mimosa, Silky Acacia. Mimosa Tree, Pink Siris, Persian Silk Tree, Albizzia julibrissin, Mimosa julibrissin, Albizia julibrissin var. julibrissin, or Mimosa arborea. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. Albizia julibrissin is a species of legume in the genus Albizia, native to southwestern and eastern Asia, from Persia east to China and Korea. It is also widely known as "Mimosa" and "Persian silk tree." The twice-compound leaves with many fine leaflets and pink powderpuff flowers are very distinctive. In the wild, the tree tends to grow in dry plains, sandy valleys, and uplands. It has become an invasive species in Japan; and in the United States It is very beautiful to look at, but it's very messy, & invasive. We have neighbors with this tree and the other neighbors in our neighborhood wish it was gone! It is not pool friendly! Silktree is commonly known as Mimosa, it is a naturalized small ornamental tree from China. After leafing-out in the late spring, the very fragrant flowers appear in June and continue off and on through the summer, followed by flat bean-like pods. The flowers are visited by insects, such as bumblebees. Hummingbirds enjoy this tree. Drought and wind tolerant. Not Pool Friendly! First introduced into the U.S. in 1745. Warning: silk trees grow in a variety of soils, produce large seed crops, and resprout when damaged. This makes it is a strong competitor to native trees and shrubs in open areas. Dense stands of mimosa often severely reduce the sunlight and nutrients available for other plants in the area. It can become a serious problem along riparian areas. Quick Notes: Height: Usually 15 to 40 feet tall. 25 to 35 feet spread. Flowers: Pink powderpuff flowers, about 1� inches long, arranged in panicles at the ends of branches. Flowering Time: Early June, then off and on during the summer. Leaves: Bipinnately compound; fern-like leaves, finely divided, 5 - 8 inches long by about 3 - 4 inches wide, alternating along the stems. Trunk: Normally 3 to 8 inches in diameter. Bark: Grayish-brown, thin, smooth. Fruit & Seeds: Flat straw -colored seedpods about 4 -6 inches long, and about 1/2 to 3/4 inch wide, containing light brown oval - shaped seeds about 1/2 inch in length. Found: Native to the USA (AL, AR, AZ, CA, DC, DE, FL, GA, IL, IN, KY, LA, MA, MD, MO, MS, NC, NJ, NM, NY, OH, OK, PA, SC, TN, TX, UT, VA, WV). Also native to Central America (Guatemala, Honduras) to central and southern Mexico. USDA Zone 9a: to -6.6 �C (20 �F) USDA Zone 9b: to -3.8 �C (25 �F) USDA Zone 10a: to -1.1 �C (30 �F) USDA Zone 10b: to 1.7 �C (35 �F) USDA Zone 11: above 4.5 �C (40 �F) Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline) Sun Exposure: Full Sun Some Shade Elevation: Can be found growing from 0 - 3,000 feet. Not cold hardy above 3,000 feet. Habitat: Used as a very common landscape plant in Phoenix. In the wild, the tree tends to grow in dry plains, sandy valleys, and uplands. Maintenance: High leaf drop. Not pool friendly. Miscellaneous: The dropping flowers are a high maintance item. Flowering Photos Taken June 04, 2006 in Glendale, Arizona.

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