Mimosa Trees
Facts about Mimosa Trees
Beautiful pink bursts that resemble fireworks in the sky aptly describe the fragrant blooming of exotic mimosa trees; a popular choice for decorative and shade in landscapes. As lovely as it is, there are a few facts to know about these trees that may be deciding factors when choosing a landscape tree.
Although its origins are from Africa and Asia and they have the appearance of being tropical, mimosa trees are actually reasonably hardy; able to withstand mild US winters. In areas where winters can tend to be cooler, planting these trees near a wall will help them to retain heat. They have, over the years, been highly prized as a decorative landscape plant with their beautifully scented pompom-like flowers that blanket the trees from April to July. The blossoms are also a favorite draw of both bees and hummingbirds that feast upon the nectar provided. In addition to these colorful blooms, the foliage in general is very attractive; graceful and delicate deciduous greens that resemble ferns provide beauty even when the mimosa trees are not in bloom. The stature of the tree is in itself attractive; heights of about 20-25 feet and a broad spreading habit that is great for summer shade. Full sun is best for good growth and the most abundant blossoms.
These facts aside, there are numerous reasons why many people shy away from including mimosa trees in their landscapes. Mimosas have a relatively short life span as compared to many decorative trees; living only about 20 years. Seed pods are formed continually, with thousands of seeds produced and scattered each year. These seeds quickly take root wherever they fall, sprouting up in the immediate area and, as the seeds are carried off by wildlife, waterways and more, in many surrounding areas as well. They are considered to be an invasive species with this type of reproductive habit. Many cities, in fact, have banned mimosa trees from being planted within city limits because of the invasive nature.
Mimosa trees are particularly susceptible to disease and infestations such as webworm and vascular wilt; features that certainly attribute to their short life. Vascular or mimosa wilt is most certainly fatal; sometimes within a few weeks but almost always within a year. The disease is spread by spores that are attached to seeds from an infected tree, and will move quickly to infect other trees in the area.
Before making the decision to include mimosa trees in your landscape, you should first check with your local government to ensure the tree is allowed. Then carefully consider all of the detrimental factors involved. Mimosa trees are indeed beautiful, and if a gardener is devoted to the continual care they require, can be enjoyed for the fragrance and the appearance in the landscape.