Three Worst Species
Salt CedarOriginally from Asia, this many branched shrub with scale-like leaves can look deceivingly attractive when covered with thousands of pink flowers. But a more sinister side exists. It is one of only a few trees that can invade salt marshes. Also known as tamarisk, the common name, salt cedar, refers to the tree´s ability to grow in salty soils. A single plant can produce over a million seeds per year. These tiny seeds blow in on the wind and can quickly develop into trees up to 25 feet tall and capable of consuming up to 200 gallons of water a day!