mimosa tree

The species is usually called "silk tree" or "mimosa" in the United States, which is misleading – the former name can refer to any species of Albizia which is most common in any one locale.
julibrissin ‘Ernest Wilson’ (also known as ‘E.H.Wilson’ or ‘Rosea’) is a cold-tolerant tree with deep pink flower colour.
However, in the eastern United States it is generally a short-lived tree, being highly susceptible to mimosa vascular wilt,[8] a fungal disease caused by a species of Fusarium, though the disease does not seem to have seriously impacted its populations.
julibrissin is a small deciduous tree growing to 5–12 m tall, with a broad crown of level or arching branches.

In part due to these changing circumscriptions, the name "Mimosa" has also been applied to several other related species with similar pinnate or bipinnate leaves, but are now classified in other genera, most commonly to Albizia julibrissin (silk tree) and Acacia dealbata (wattle).
Some mimosas raise their leaves in day and lower them at night, and experiments done by Jacques d’Ortous de Mairan on mimosas in 1729 provided the first evidence of biological clocks.[2] Mimosa can be distinguished from the large related genera, Acacia and Albizia, since its flowers have 10 or fewer stamens.
The taxonomy of the genus Mimosa has had a tortuous history, having gone through periods of splitting and lumping, ultimately accumulating over 3,000 names, many of which have either been synonymized under other species or transferred to other genera.

Mimosa seedlings and small trees can be controlled by applying a 2% solution of glyphosate or triclopyr plus a 0.25% non-ionic surfactant to thoroughly wet all leaves.
Due to its ability to grow and reproduce along roadways and disturbed areas, and its tendency to readily establish after escaping from cultivation, mimosa is considered a Category II invasive by Florida’s Exotic Pest Plant Council.
Cutting is most effective when trees have begun to flower to prevent seed production, but may require repeated cuts or an herbicide application to control sprouting.
Mimosa is a strong competitor in open areas or forest edges due to its ability to grow in various soil types, ability to produce large amounts of seed, and its ability to resprout when cut back or damaged.
For saplings, apply triclopyr as a 20% solution in commercially available basal oil, diesel fuel, or kerosene (2.5 quarts per 3-gallon mix) with a penetrant (check with herbicide distributor) to young bark as a basal spray.
For resprouts and seedlings thoroughly wet all leaves with a surfactant in water with and triclopyr or glyphosate herbicide as a 2% solution (8 ounces per 3-gallon mix between July to October) or clopyralid as a 0.2- to 0.4% solution (1 to 2 ounces per 3-gallon mix between July to September).
Mimosa is often seen along roadsides and open vacant lots in urban/suburban areas and can become a problem along banks of waterways, where its seeds are easily transported in water.
Systemic herbicides such as glyphosate and triclopyr can kill entire plants because the chemicals travel through a plant from the leaves and stems to the actively growing roots.
The first step in preventative control of mimosa is to limit planting and removal of existing plants within the landscape.
Apply a mixture of 25% triclopyr and 75% basal oil to the base of the tree trunk to a height of 12-15 inches from the ground.
An opportunist, mimosa will take advantage of disturbed areas, either spreading by seed or germinating in contaminated soil.

The last couple years, before my border bed on the fence closest to his yard got established and before he cut the tree down, I EASILY pulled up a thousand or more baby mimosas… and once they get more than a few inches tall, they’re TOUGH to pull… as tough or worse than a seedling oak! I have some a foot or two high right now I’m gonna have to stump cut and apply Glyphosate to the stump.
After we moved away the yard where the Mimosa grew was allowed to go unchecked for several years and there was a patch of trees growing nearby that the plow later took out.
I too grew up climbing on a huge three trunk mimosa tree in my parents front yard that shaded our swing set… yes it died and dad had to cut it down.
If your neighbor has a Mimosa growing in their yard and you don’t see Mimosas springing up everywhere, then there’s a reason for it.
The tree I planted on the southside of my house grew quickly, and thank goodness too, for our big elm died and the Mimosa now is all that shades that hot side of the house all summer.
You wait and see, someday everyone is going to want a mimosa tree, they will find out not only does it greatly improve your soil, but it also has medicinal purposes, and you never know what cure they might find with it.
If you can get a mimosa seedling and keep it to single trunk and set it where it doesn’t have to fight for sun I see no reason why you shouldn’t have it in your yard if you’re willing to keep after the seedlings.
I would not plant a Mimosa over a bed where the soil is ammended to growing seedlings, any seed that falls there is going to sprout.
We had a big one in our yard when I was a kid, and I have a medium sized one growing partly over one of my ponds now, but like all the THOUSANDS of others that have sprung up in my yard in the past few years, it was a volunteer from the next-door-neighbor’s tree, which he finally cut down a few months back.

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The pink pompoms of the flowers and fernlike foliage make this seem attractive as an ornamental, but mimosa has a short lifespan, has weak, brittle wood, is susceptible to a host of diseases, insects and poor weather.
Leaves alternate, twice-pinnately compound (fernlike), 6–20 inches long, the pinnae (first division) branches 2–6 inches long, the leaflets about 1/2 inch long, lacking teeth but with hairs along the edges.
Flowers May–August (after leaves emerge), on tips of branches, pink, crowded in tassel-like round heads, 1 1/2 inches across; fragrance is strong and sweet.
Twigs moderately stout, green to brown or gray, somewhat fluted below nodes (where leaves attach), often zigzag, smooth; pores small, numerous.
Fruits August–September; pods are flat, linear, yellowish-brown, 5–8 inches long, forming large clusters; seeds are flat, light brown, oval, about 1/2 inch long.

Any thoughts on helping out my existing mimosa tree? It’s only about fifteen years old but has a couple of shallow cracks, which I thought might have been due to our unusually cold and hard winter.
Recently, a new kind of mimosa was introduced to the gardening world, a purplish-bronze leaf selection called ‘Summer Chocolate.’ The hype over its undeniably pretty foliage and pink flowers was overwhelming.
In hort class, we called it a “pioneer species,” because if you disturb the land, remove native vegetation, and open the tree canopy to light, it’s one of the first trees to appear.
Why, when I was a kid, at the nadir of sensibility and good taste, I thought mimosa (Albizia julibrissin) was the prettiest tree in the world.
In China the peeled, dried bark of mimosa, called “collective happiness bark” in Chinese, is used as an uplifting remedy for an irritable-type of depression accompanied by insomnia, poor memory, grief and anger.
Other studies have found that mimosa foliage and flowers contain antioxidants that inhibit the oxidation of the bad LDL cholesterol, decreasing the danger associated with high LDL cholesterol, which would make a lot of people happy.
Mimosa adapts to almost any well-drained soil, laughs at heat and drought, and does not mind if you spray-paint the trunk white, hang tires from the branches, or park your pickup on top of its roots.
Native to the Middle East and Asia, mimosa was brought to this country in 1785 by the famous French botanist Andre Michaux, who planted it in his botanic garden in Charleston, South Carolina.

Preferring U.S. Department of Agriculture plant hardiness zones 6 through 10, mimosas need to be large enough to cultivate flowers and subsequent seed pods — younger trees do not have the energy reserves for reproductive activity.
Growing fern-like leaves up to 20 inches long, the mimosa (Albizia julibrissin) tree’s height reaches an impressive 40 feet with long 7-inch seed pods decorating the branches after successful pollination.
Unlike many other plants, silk trees thrive in very strong acidic conditions between 4.6 and 5 — a pH meter inserted into the soil provides you with an accurate reading.
New spring branch growth produces the flowers in clusters, leaving the remaining, older branches to concentrate on foliage development for photosynthesis energy production.

Identification: Mimosa is a deciduous tree that may reach 50 feet in height.  The tree has bipinnately compound leaves that have 20-60 leaflets that are feathery and fernlike.  The tree will produce dangling pods in the summer that will persist through the winter.  The bark is light brown or gray with raised dots and dashes.  The small, fragrant pink blossoms appear from May to July.
Large saplings can be treated in a similar fashion, taking care to treat the entire cut surface.  If seed pods are present on cut limbs, collect and bag these and dispose of in heavy garbage bag so they do not sprout.  Monitor for seedlings and control as needed.
Ecology: Mimosa colonizes by root sprouts and seeds that are spread by animals and water.  Seeds are viable for many years.  The tree will form dense stands in riparian areas or dry sites, generally along forest edges.

However, its bipinnate, ferny leaves and fluffy pink flowerheads that cover the tree in summer make it a garden-worthy plant, as do the fragrance emitted by the flowers, which attract bees.

Its large, spreading form and vibrant blooms make it an appropriate choice for a specimen tree on a lawn or other open area, but several problems — including litter, weak wood and short lifespan — work against it.
Native to a wide range of Asia from Iran to Japan, the mimosa tree is winter hardy in U.S. Department of Agriculture plant hardiness zones 6 through 9.
Despite its fast growth rate, the mimosa tree will only attain its height for a short time: it generally lives only 10 to 20 years.
It can be quite invasive, however, so avoid planting mimosa tree in areas where it is already growing invasively or in watershed areas where streams will distribute seeds.
The mimosa tree grows quite quickly, usually adding 2 or more feet of height per year.
Although the mimosa tree tolerates both full sun and light partial shade, it prefers to grow where there is no competition for light, where it will flower best.
The mimosa tree (Albizia julibrissin) is known for its fluffy pink flowers that cover it from June to July.

The Red Mimosa Tree is a fast growing flowering tree that can provide excellent shade during the summer time.

Deane, Have you personally prepared and eaten mimosa (Albizia julibrissin) leaves? And blossoms? A noted plant and permaculture authority in New England recommends this plant as a nitrogen fixer, an ornamental one, at that, but says that ‘though the leaves are said to be edible, I think they taste terrible’.
I just saw someone collecting the green seed pods from a mimosa tree and eating the seeds raw.
I was drinking “Mimosas” — orange juice and champagne — about 20 years before I discovered the Mimosa tree was edible.
While your article says the seeds are not edible, I have to tell you that while the brown, dried out pods are full of rock hard seeds you couldn’t eat without chipping a tooth, the green pods are full of pumpkin seed shaped seeds that taste like peas.
The Mimosa is called Albizia julibrissin (al-BIZ-zee-uh jew-lih-BRISS-in) It was named after the Italian nobleman Filippo del Albizzi, who introduced the tree to Europe in the mid 1700′s.
I eat the leaves of the mimosa tree raw and haven’t had a problem.

Ideal for the United States Department of Agriculture planting zones 6 through 9, this tree provides light shade and adds a lovely burst of color amongst other deciduous or evergreen trees, or when used as a specimen.
Silk tree mimosa (Albizia julibrissin) growing can be a rewarding treat once the silky blooms and fringe-like foliage grace the landscape.
Mimosa trees are a member of the Fabaceae family and are a popular ornamental tree in the home landscape.
Silk tree mimosa growing is really quite easy.
Silk trees need just enough water to keep moist; they will even tolerate a short period of drought.

This fast growing, deciduous tree has a wide, umbrella shaped canopy with beautiful bronze-green, fern-like leaves appearing in late spring.
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Follow a regular watering schedule during the first growing season to establish a deep, extensive root system.

Silk tree seedlings and small trees can be controlled by applying a 2% solution of glyphosate (e.g., Roundup®) or triclopyr (e.g., Garlon) and water plus a 0.5% non-ionic surfactant to thoroughly wet all leaves.  Systemic herbicides such as glyphosate and triclopyr can kill entire plants because the chemicals travel through a plant from the leaves and stems to the actively growing roots, where they  prevent further cell growth.  Use a low pressure and a coarse spray pattern to reduce damage from spray drift on non-target species.   Use caution when applying these products, as glyphosate is a non-selective herbicide that may kill non-target plants that are only partially contacted.  Triclopyr is a selective herbicide for many broadleaf plant species.
Silk tree reproduces both vegetatively and by seed.  Silk tree seeds have impermeable seed coats that allow them to remain dormant for many years.  One study showed that 90% of the seeds were viable after five years and, for another species of mimosa, a third of its seeds germinated after 50 years in open storage.  Seeds are mostly dispersed below or around the parent plant, but can be dispersed further by water.  Silk trees grow rapidly under good conditions but are short-lived and have weak, brittle wood.  If cut or top-killed, trees resprout quickly and sprouts can grow over three feet in a season.
Girdling is effective on large trees where the use of herbicides is impractical.  Using a hatchet, make a cut through the bark encircling the base of the tree, approximately six inches above the ground.  Be sure that the cut goes well below the bark.  This method will kill the top of the tree but resprouts are common and may require a follow-up treatment with a foliar herbicide.  Hand pulling will effectively control young seedlings.  Plants should be pulled as soon as they are large enough to grasp, but before they are old enough to flower.  Seedlings are best pulled after a rain when the soil is loose.  The entire root must be removed since broken fragments may resprout.
Silk tree takes advantage of disturbed areas, often spreading by seed from nearby ornamentals or from contaminated fill dirt.  It prefers full sun and is often seen along roadsides and open vacant lots in urban/suburban areas.  Silk tree can tolerate partial shade but is seldom found in forests with full canopy cover, or at higher elevations (above 900 m or 3,000 ft), where cold hardiness is a limiting factor.  It can, however, become a serious problem along riparian areas, where it becomes established along scoured shores and where its seeds are easily transported in water.  Like many successful exotics, it is capable of growing in a wide range of soil conditions.
Many small to medium-sized trees make excellent alternatives to silk tree.  A few examples include serviceberry (Amelanchier arborea), redbud (Cercis canadensis), flowering dogwood (Cornus florida), river birch (Betula nigra), fringe tree (Chionanthus virginicus), American holly (Ilex opaca), and sweetgum (Liquidambar styraciflua).  Check with the native plant society in your state for plant recommendations for your particular area.
Silk tree, also known as mimosa, or silky acacia, is a small to medium-sized tree that can grow up to 20-40 feet tall.  The bark is light brown, nearly smooth, and generally thin with lens shaped areas along the stem.  The attractive fern-like leaves of mimosa are finely divided, 5-8 inches long by about 3-4 inches wide, and alternate along the stems.

Our Mimosa Tree is about 5 years old we had a very hard winter here in West Virginia and the tree is coming out late and not all branches are getting leaves and alot of the leaves are on the trunk of the tree starting at the ground.
Yes… Your Mimosa Tree can be planted any time of year… even Winter.
I have a newly planted young mimosa tree that has yellowing leaves and the leaves stay closed.
Best Answer: It’s best to plant the Mimosa Tree in the early Spring or early Fall.
Best Answer: You can grow a Mimosa tree from the seeds in the pods if the seeds are correctly germinated.
Weve had our mimosa tree planted on our front hillside for 15 years.
Best Answer: Not sure where you live, but my mimosa tree is only about 1 yr.
Best Answer: Hi Kathy, we have been very pleased with our mimosa tree.
The mimosa tree we received spent 8 months in a temporary pot and was then planted outside.
I planted a small mimosa tree at my dads house in Virginia.
Best Answer: I am not familiar with the cultivar name of the mimosa tree we acquired, sorry.
A Mimosa tree just started growing on the side of our house where we already have quite a few shrubs, roses, evergreens and a wonderful Magnolia tree.
Best Answer: Give your Mimosa Tree a well balanced all purpose fertilizer like formula 10-10-10.
We planted the Mimosa tree in our large back yard for beauty.
Best Answer: The Mimosa Tree can be shipped to NJ at anytime.
Best Answer: Your Mimosa Tree could not be blooming for many reasons.

Yellowed and wilted leaves on a mimosa during the second growing season after initial diagnosis of Fusarium wilt.
When the tree defoliates prematurely due to mimosa wilt, the fungal pathogen grows out from the vascular tissue into the bark and begins production of pink to orange spore masses.
Cracked bark on a mimosa tree with Fusarium wilt disease.
Mimosa sprouts emerge near base of dead trunk of a mimosa during the second growing season after initial diagnosis of Fusarium wilt.
Currently, there are only a few mimosa cultivars (‘Charlotte’, ‘Tryon’ and ‘Union’) with resistance to Fusarium wilt.
However, these cultivars do not appear to be widely available in the nursery trade and strains of the Fusarium wilt pathogen have been reported to overcome resistance in ‘Charlotte’ and ‘Tryon’.
Fusarium wilt is a common and lethal disease of mimosa (Albizia julibrissin)1, also commonly known as silktree.
Defoliated branches in a section of a mimosa with Fusarium wilt disease.
An early symptom of Fusarium wilt is a brownstreaking in the wood that is apparent when the bark of stems or roots is cut away; however, these symptoms typically go unnoticed (Figure 1).
Discolored wood in Fusarium wilt diseased mimosa branch.
The mycelium then penetrates and colonizes the mimosa roots, moving into the vascular tissue where the fungus begins to produce spores.
Fusarium wilt is caused by the fungus Fusarium oxysporum forma specialis perniciosum.
The first readily noticeable symptoms of mimosa wilt are yellowed, stunted, and wilted leaves on one or several branches in early to mid-summer.

Some New Mexico trees and shrubs more resistant to Fusarium wilt include redbud, honey locust, and New Mexico locust.
Infected trees should be watered frequently to decrease wilt symptoms, and dead branches should be removed and burned.
Mimosa wilt is the most serious disease of landscape mimosa trees.
Even with systemic fungicides, chemical control of Fusarium wilt is not practical when treating established trees.
Symptoms of mimosa wilt include chlorosis (leaf yellowing) and leaf wilt by early to midsummer, after which many leaves may yellow and drop without wilting.

The deciduous nature of the Mimosa allows for maximum shade and protection in the summer, and allows the landscape sunlight during winter, letting your landscape breathe during ideal growing temperatures.
The very hardy and heat loving Mimosa is ideal wherever a full, dense canopy is desired during the summer months.

The Mimosa Tree can grow as much as three feet in a year and the tropical look of the fern like leaves is very desirable to the homeowner who likes to grow long grass underneath the filtered shade.
The Mimosa Tree is a beautiful fast growing flowering tree that can grow to a mature height of thirty feet.
The Mimosa Tree is a legume and can enrich the soil with nitrogen fixing bacteria that grow in soil around the roots.

Foliar Spray Method: This method should be considered for large thickets of mimosa seedlings where risk to non-target species is minimal.
Cut Stump Method: This control method should be considered when treating individual trees or where the presence of desirable species preclude foliar application.
Mimosa seeds have impermeable seed coats that allow them to remain dormant for years.
Mimosa takes advantage of disturbed areas, often spreading by seed from ornamentals nearby or from seed brought in on fill dirt.
This method will kill the top of the tree but resprouts are common and may require follow-up treatments for several years until roots are exhausted.

I just came across your site tonight, and am excited to have such a great source of permaculture information! Would you please give me your thoughts on how Black Locust and Mimosa compare as nitrogen fixers? I was leaning toward black locust trees, as the quality of their wood is appealing to me; however, I have mimosa trees all around where I live, and so I know they would be good performers for me.
The Persian Silk Tree (or Mimosa) is an ideal Permaculture tree to reclaim damaged soils and help establish a quality Forest Garden.
Native to southwester and eastern Asia (Iran, Korea, and Japan are known for cultivation), the Persian Silk Tree has spread around the world as an ornamental tree.

Mimosa trees can grow in many different soil types and produce thousands of seeds in a single season – In places like Florida Mimosa is extremely invasive so you might consider growing a small Mimosa in a container.
Mimosa is a beautiful fern-like tree with fragrant 2 inch pink pompom type flowers that produce seed pods in the winter months.
Another variety called “Chocolate Summer” Mimosa, a variation of Albizia Julibrissin, has the same pink flowers but with chocolate / bronze colored leaves.
The leaves of a Mimosa are like a fern and they actually fold up at night, it’s neat to watch! The tree Mimosa Pudica is very sensitive to touch and will fold up much faster than the Albizia Julibrissin.

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Despite its picturesque growth habit and its beauty when in bloom, some cities have passed ordinances outlawing further planting of this species due to its weed potential and wilt disease problem.
Unfortunately, Mimosa (vascular) wilt is becoming a very widespread problem in many areas of the country and has killed many roadside trees.
The litter problem of the blooms, leaves, and especially the long seed pods requires consideration when planting this tree.
Several cultivars exist: ‘Alba’ has white flowers; ‘Rosea’ (‘Ernest Wilson’) has bright pink flowers, is hardier than the species, and is 10 to 15 feet in height; ‘Rubra’ has deep pink flowers.
These can raise walks and patios as they grow in diameter and makes for poor transplanting success as the tree grows larger.
But the tree produces numerous seed pods and harbors insect (webworm) and disease (vascular wilt) problems.
Fragrant, silky, pink puffy pompom blooms, two inches in diameter, appear from late April to early July creating a spectacular sight.

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