The 60 Worst Trees To Put In Your Yard – These Trees Can Be Dangerous When Planted
One thing people have to consider when having property is which trees they wish to keep or plant in their yard. While the right tree can transform a landscape into a piece of art, the wrong tree can uproot a yard and crush sidewalks.
After reading about these trees, you may not want them near your home. Planting or keeping just one of them could potentially have damaging effects on your property, including containing toxins that harm surrounding plants and animals.
Chinese Flame Trees Spread Like Wildfire
Chinese flame trees have a lot going for them: they're drought-tolerant, pest-resistant, and bloom beautifully in the summer. But one tree quickly turns into a forest. After blooming, the seed capsules blow everywhere. Once the seed hits the soil, it germinates. And that's an issue.
That's why The Grumpy Gardner Steve Bender called Chinese flame trees the "Worst Tree I Ever Planted" in a Southern Living article. The seeds spread to every corner of your yard and, according to Bender, your neighbor's yard. Once you plant this tree, you'll spend the rest of your days working to stop it from spreading.
One Eucalyptus Can Destroy Your Yard
Eucalyptus trees are largely admired for their honey-like smell. But don't plant one in your yard, or else your soil will suffer. Eucalyptus trees require a lot of nutrients and water. Not only do they dehydrate quickly, but they also rob the earth of all its nutrients, causing your other plants to wither.
From an environmental perspective, eucalyptus trees have little to offer in yards. Their canopy is too fragile to support nests, and their leaves don't feed many species of animals. Additionally, a eucalyptus tree in drought conditions could suddenly drop one of its heavy branches, which is very dangerous.
Never Sit Beneath A Tulip Poplar
Tulip poplars look gorgeous, especially when their leaves turn orange. However, it's best to never sit under this tree. Tulip poplars tend to drop branches and twigs throughout the year. Their leaves drip sticky honeydew, which will rip off your car paint should you park your vehicle under the tree.
Unlike hard-wooded trees, tulip poplars can easily fall in storms. This becomes a significant problem when the tree grows over 80 feet tall. Since these trees require a lot of caution and maintenance, they're not the best choice for a home's yard.
Bradford Pear Tree Flowers Stink
After being imported to America, Bradford pear trees became incredibly popular. They often appear around homes built around the 1960s. But if you have one, beware. Like the cottonwood, Bradford pear trees are incredibly fragile due to their pyramid shape.
To make matters worse, Bradford pear's beautiful white flowers stink. This tree grows to over 50 feet tall and almost as wide, so it engulfs your entire yard in a fish-smelling tent. Bradford pears will only make your yard worse, and they may damage your house if they become too weak.
Black Walnut Trees Are Toxic
Black walnut trees may be pretty, but they produce a toxic chemical that can eliminate your entire yard. This chemical, called juglone, can stunt the growth of grass and wilt certain vegetables. To keep your yard alive, you'd have to replace all plants with juglone-resistant vegetation like tall fescue grass.
If you remove fallen leaves and nuts, you can reduce the juglone problem. But that doesn't stop black walnut trees from dropping carpets of leaves and seeds over your yard. Stay far away from this tree.
Mulberry Trees Mess With Birds
If you don't want rotting fruit or pests, stay away from mulberries. Although these trees are sturdy and shady, they attract a range of hosts from silkworms to birds. Once the fruit ferments, it makes birds act tipsy. Expect some birds to fly straight into your kitchen window.
As mulberry fruit falls and rots, it attracts fruit flies that will wander into your home. Many mulberry trees, especially white mulberries, develop aggressive roots after a couple of years. These roots will crack the pavement and overrun landscaping.
Eastern Cottonwoods Are Very Fragile
Some homeowners love cottonwood trees because they're aesthetically pleasing and low-maintenance. However, they're also fragile. They have shallow and soft root systems that are prone to disease. If the roots rot, the tree will probably fall during the next big storm.
True to its name, Eastern cottonwoods also produce cotton-like spores that stick to everything. The trunk is brittle and easily rots from insects and diseases. Cottonwoods might be pretty to look at, but not a tree to plant in one's yard.
Mimosa Trees Are Bad In So Many Ways
Mimosa trees are attractive, especially for insects. These trees draw webworms, moths that don't harm your plants but also don't look great. Expect caterpillars roaming around on this tree. On top of that, mimosa trees are prone to breakage, especially their branches.
Mimosa trees produce six-inch long seedpods that germinate very quickly. Even after the leaves have fallen, these seeds persist through the winter. If you're not careful, you'll end up with an army of mimosa trees littering your yard. Stay safe, and don't plant this tree near your home.
Sweetgum Trees Have Terrible Seeds
Although sweetgum offers lovely autumn leaves, many people despise its seeds. Once you have a sweetgum tree, you'll never walk barefoot in your yard again. These seedpods have tough, spiny exteriors that make them difficult to remove from grass and other plants. They also attract a large host of birds to your yard.
Sweetgum trees also have invasive root systems. They threaten your home's foundation, patio, garden, and driveway. Although sweet gum trees used to be popular around the 1940s, their high-maintenance has deterred many people from them. It's easy to see why.
Magnolia Trees Host Too Many Bugs
Many people love the magnolia's wide, white flowers. If you plant one, you'll have to keep a close eye on it. Magnolias attract a wide host of insects, including caterpillars, thrips, and aphids. Most won't harm the tree, but aphids and thrips will cause the leaves to fall prematurely.
Speaking of leaves, deciduous magnolias shed their leaves year-round. So you'll constantly have to rake your yard if you want to maintain this tree. Even if you plant an evergreen magnolia, the bugs will likely create piles of leaves. Don't plant a magnolia unless you're prepared to give it a lot of maintenance.
Certain Ginkgo Trees Are Worse Than Others
Ginkgo trees can brighten a yard with their wide yellow leaves that fall during autumn. But if you get one, don't plant a female ginkgo biloba. These trees drop smelly fruit that quickly pollutes your garden, driveway, or patio. Cleaning it up will consume all of your gardening time.
Fortunately, this doesn't happen with male ginkgo trees. Stick to selections like "Fairmount," "Autumn Gold," and "Saratoga" to guarantee that there's no fruit. If you don't do your research beforehand, your yard will be cursed with fruit for the next 3,000 years (yes, ginkgos live that long).
Weeping Willows Will Make You Cry
Weeping willows are wide, droopy trees with their leaves brushing the ground. But its leaves are not the problem; its roots are. Willow roots are strong and aggressive, and they've been known to damage pavement and water lines. Plus, the roots absorb all the soil's water.
Despite their stubborn roots, willow trunks and branches are susceptible to bugs. Since willow trees grow between 50 to 60 feet wide, so these bugs can easily leech from your other plants. The willow adds more problems than benefits to a yard.
Catalpa Trees Are Only Beautiful For A Short While
While many of the trees on this list are tempting to plant due to their beautiful changing leaves in the fall, that's not the case with catalpa trees. Many people are drawn to these trees for their beautiful flowers, that appear similar to orchids.
But when the leaves of this tree start to die, they don't change to a beautiful color. Instead, they're blackened by frost before falling on the ground and covering the yard. These trees will only bloom for a few months between spring and early summer, but require a lot of clean up.
Silver Maples Destroy Pipes
Despite being one of the most common trees in North America, silver maples don't help your yard. They're easy to grow, but hard to kill--which you might want to do when the roots destroy your sidewalk. Silver maples have invasive roots infamous for clogging water lines and destroying landscapes.
Silver maples require an enormous amount of water and space, which can rapidly rob your garden of much-needed nutrients. The only cure to this problem is removing the tree, which is difficult and can only be done by a professional. Spare yourself from the trouble.
The Tree Of Heaven Isn't As Pleasant As Its Name
Since the tree of heaven was introduced to North America in the 1800s, it has threatened to overwhelm wildlife. This tree grows too quickly to contain, and it can easily consume other plants and concrete. It also produces an excessive amount of seeds that could endanger your garden.
To top it off, the tree of heaven produces a chemical that harms surrounding vegetation. Plants' growth can be stunted or killed from one tree. Nature organizations are already struggling to contain this tree, so don't add one to your yard.
Birch Trees Are Yard Hogs
Birch trees are shady and elegant, but once you plant them, nothing will grow near that tree. Birches have shallow roots that make the soil as hard as concrete. They tend to consume their surrounding space, and even if you chop the roots, they'll grow back stronger.
Birch trees also attract a garden-destroying pest called the bronze birch borer. These beetles lay their eggs in birch trees, and their larvae feed on the insides of plants. Unless you want a yard full of only birch trees, keep these out of your yard.
Leyland Cypress Are A Safety Hazard
![Lake Elmo/December 7,2010/ 4 PM IN THIS PHOTO:] (Left to right) Sixteen-year-old Ellie Krienke of Shoreview looked for the perfect Christmas tree to cut at Krueger's Christmas Tree Farm.](https://www.buzznet.com/wp-content/uploads/2023/07/lake-elmodecember-72010-4-pm-in-this-photo-left-to-right-sixteen-year-old-ellie-krienke-of-shoreview-looked-for-the-perfect-christmas-tree-to-cut-at-kruegers-christmas-tree-farm-55862.jpeg?width=480&height=720 "Lake Elmo/December 7,2010/ 4 PM IN THIS PHOTO:] (Left to right) Sixteen-year-old Ellie Krienke of Shoreview looked for the perfect Christmas tree to cut at Krueger's Christmas Tree Farm.")
The Leyland cypress is a fast-growing, hassle-free tree. Many people like planting this tree to keep their yard private, but it quickly grows too large for most yards. Despite its size, Leyland cypresses are easily uprooted during storms and strong winds. In short, they're a safety hazard when planted near houses.
Leyland cypresses are also susceptible to many different types of fungi. These can cause dying bark and root rot. Also, spiders and mites adore this tree. The bottom line is that Leyland cypresses are unsafe.
Sycamores Only Create A Mess
If you want a mess-free yard, stay away from sycamores. These trees are notorious for dirtying homes with seedpods and leaves. Sycamores are also prone to fungal diseases like anthracnose, which can drop more leaves. Throughout the year, your yard, roof, and rain gutters will be clogged with leaves and seeds.
In the summer, sycamore trees often turn white. The culprits are lace bugs, which have a habit of falling on people and cars. Not only do sycamores look ugly for part of the year, but they also cover your yard in debris.
Ash Trees Are Constantly In Danger
On the surface, ash trees seem like a good deal: they're resilient, fast-growing, and sport a beautiful color. However, ash trees are threatened by the emerald ash borer. Across 30 states, these beetles have destroyed tens of millions of ash trees, according to the U.S. Department of Agriculture.
As of now, there are treatment options for ash trees rotted by emerald borers, but there is no cure. If you plant an ash tree, you'll likely have to replace it every couple of years. You don't want to risk a large tree falling, do you?
This Tree Is Killing Itself
Watch out for this telltale sign of distress. Girdling roots, these circling and tangled roots, are a sign that the tree is slowly killing itself.
The roots eventually choke the trunk and kill the tree. Keep an eye on your lawn to help stop these before they take root.
You'll Have To Clean Up After Red Oaks
Northern red oaks appear elegant with their large and intricate leaves. Unfortunately, these leaves are the same source of this tree's problems. Red oaks shed massive amounts of leaves throughout autumn and spring. Even their tiny flowers, catkins, fall in enormous numbers.
Red oaks are also susceptible to insects, bacteria, and fungi. They're not as sturdy as they appear to be. If you're willing to clean up after your trees frequently, you can manage a red oak. But if you don't want the hassle, look for another tree.
Russian Olive Trees Are Leeches
With its silvery leaves and cool-colored trunk, the Russian olive tree looks like a nice garden staple. But this tree quickly suffocates other plants. When birds eat their fruit, they spread the seeds across the garden, which slowly consumes the area. Russian olive roots don't make the soil any more habitable.
Like all olive trees, the Russian olive is tough to kill. If you cut them down, they'll resprout. It's no wonder why Russian olives are considered an invasive species. Do your home a favor and keep this tree out of your yard.
The Roots Of Quaking Aspen Trees Take Over
Quaking aspen trees have beautiful leaves that change to golden and yellow tones in the autumn and are the state tree of Utah. Although quaking aspen trees can be found all across North America, you don't want these trees near your home.
What makes these trees so dangerous to your home and yard is their strong and fast-growing root system. These trees are known to quickly regrow and spread after wildfires. That same resiliency comes into play when its tree roots are getting into your plumbing.
The Lombardy Poplar Can Be An Eyesore
If you want to keep your landscaping looking pristine, don't select a Lombardy Poplar for your yard. You likely see these trees everywhere, as they're a popular addition to yards across America, due to their elegant column shape and ability to grow around 6 feet in just one year.
Homeowners should know that Lombardy poplar trees are highly susceptible to being damaged by insects and tree diseases. This typically means they end up looking damaged and unhealthy, while remaining a large fixture in your yard.
Mountain Cedar Trees Are Pollen Bombs
Typically found in the south-central part of the U.S., mountain cedar trees are bushy trees that you don't want to be anywhere near during the winter, especially if you're prone to allergies.
In the late winter, these trees release heavy amounts of pollen at a wide range. Not only will it disturb your yard, but it's likely to affect others on the block as well. You're better off finding another bushy tree to plant.
Eastern White Pines Are Messy
Eastern white pines will constantly leave a sticky mess in your yard. A deciduous tree, Eastern white pines are one of the worst of its kind, as its sap, known as "pitch" is incredibly sticky.
This tree will drop sticky debris that can damage car paint as well as clothing. You definitely wouldn't want one of these trees hanging over your driveway or back patio. you'll end up avoiding that area of the yard forever!
Honey Locust Trees Require A Lot Of Raking
Honey locust trees could add some beautiful color to your lawn, but make sure you get the pod-less kind! There are multiple types of honey locusts, and some of them drop seed pods that are far more difficult to rake than cleaning up leaves.
Next time you see these trees lining a tree or throughout a park, look below to see if they are dropping seed pods, or if they're pod-less.
Even Pecan Lovers Don't Want Pecan Trees
Even if you absolutely adore pecans, do you really want a pecan tree in your yard? More than likely, the answer is no. Similar to other messy trees on this list, pecan trees are brittle and will drop large branches in the wind and smaller twigs year-round.
The small leaves of the tree seem to fall by the dozen, making raking a constant chore. You definitely don't want to have one of these leaves around your car in a storm.
Redwood Trees May Threaten Your Home's Foundation
If you're lucky enough to live in a climate that allows redwood trees to thrive, it might be tempting to add one of these gorgeous plants to your yard. However, there are several downfalls to having one of these trees around.
Not only are they extremely messy, but redwood trees' strong roots can damage sidewalks and even the foundation of your home. After a storm, your yard will be littered with redwood needles. They also block a decent amount of sun, which could take light away from your other plants.
Bottlebrush Trees Are Difficult To Pick Up After
Although their spikes of flowers are beautiful, they're also a major reason not to plant a bottlebrush tree in your yard. The soft, needle-like leaves that constantly fall from the tree are difficult to clean up.
These trees can grow up to 15 feet, which can lead to a lot of clean-up in its mature years. You're better off selecting a shrub with leaves you can easily rake, or you'll spend every weekend in the yard!
Linden Trees Are Sap Machines
Another tree that produces a sticky mess is the linden tree. These trees seem to be sap-making machines, as they are constantly secreting sap.
Keep linden trees far away from your driveway and street, as the sap will be awfully hard to clean off your car, and will likely damage the paint if you don't clean it off. It's one thing to be cleaning up leaves, but sap is an entirely different beast.
American Elm Trees Have Invasive Root Systems
American elm trees are another tree that you don't want to plant near your home, and might consider an inspection or removal if you already have one in place. These trees have extremely invasive root systems that can threaten sewer lines and drain pipes.
One place you'll see a ton of these trees is Central Park in New York City. The park is home to around 1,200 American elm trees!
Don't Be Fooled Into Planting A Chinese Tallow
Chinese tallows, otherwise known as "popcorn" trees because of their distinctive flowers, are appealing to people because of their attractive bright coloring and the fact that their broad leaves provide great shade.
Don't be fooled into planting one of them in your yard, however! They're commonly ranked among the most invasive tree species and they can grow to enormous sizes. You can expect a Chinese tallow tree to reach up to 30 feet in width and 40 feet in height -- that's not a root system most people will want in their yard.
A Norway Maple Can Kill Neighboring Trees
Another gorgeous tree that can end up causing homeowners problems down the road is the Norweigan maple. This specimen has a shallow, fibrous root system. That, combined with the fact that they provide tons of shade, meaning that it's pretty much impossible ever to grow grass underneath one.
Also, this is a non-native tree with aggressive roots that can quickly displace native trees and shrubs. The roots also release a toxin that can be harmful to other plants.
An Empress Tree Can Cause Damage In Storms
This tree, also known as a Royal Empress Tree, has an impressive name but people shouldn't let this fool them. Empress trees have fragrant flowers and they typically remain at a reasonable size (about 30 feet tall as a maximum height). There's where the benefits end.
These trees are very weak and tend to break in storms, creating a huge risk for nearby structures or cars. If you live somewhere that's prone to big storms, this is probably a tree to skip.
White Birches Are Unstable
There are many different types of birch trees and they're quite popular among homeowners as a backyard feature, but some varieties of birches are more appealing than others. The white birch, in particular, is one that a lot of homeowners might be advised to steer clear of.
For one thing, white birches do not do well in dry, hot climates. And they're also highly susceptible to bronze birch borers, which are beetles that kill birch trees. A third problem with white birches is that they have shallow roots, making them unstable and a threat to your home.
The Callery Pear Can Cause Storm Damage
The Callery pear tree, scientific name Pyrus calleryana, is considered beautiful by many because it has bright red leaves in the fall and eye-catching white blooms in the springtime.
However, just as with every other tree on this list, this species is also one to think twice about planting. The Callery pear has an inherently weak branching structure which can cause a lot of damage, especially in regions with snow, ice, or heavy winds.
Siberian Elms Are Fast-Growing And Aggressive
The Morton Arboretum in Lisle, Illinois, classifies the Siberian elm as "not recommended" and states that these trees "have invasive traits that enable them to spread aggressively." As we know, that's not usually something to look for when selecting trees for landscaping a yard.
In addition, Siberian elms are "highly susceptible to ice damage" and have a weak wood and branch structure. All of these qualities together mean that homeowners need to think twice about planting this particular species.
Staghorn Sumac Trees Can Cause Allergic Reactions
One look at this stunning red-hued specimen and it's easy to see why people might be attracted to the Staghorn sumac. But the deciduous shrub, which can reach 15-30 feet in height, is related to poison ivy. Although Staghorn sumac isn't poisonous, some people may have an allergic reaction to the plant.
If you're wanting to add some bright, bold colors to your yard, there are lots of different options to choose from.
Black Locusts Are Good For Firewood, But Can Be Too Aggressive For Many Yards
Black Locust, also known by the scientific name Robinia psuedoacacia, is a fast-growing hardwood tree that grows lovely and fragrant white flowers. The heavy wood is prized as firewood so some people plant black locusts for this reason.
However, these trees are brittle and have sharp thorns. Additionally, they seed themselves quite generously so are considered an invasive pest by many people. Unless you need a lot of firewood handy, it might be best to steer clear of this one.
Bois D'Arc Trees Are Thorny
Maclura pomifera, otherwise known as Bois d'arc or Osage orange, has a valuable wood that has long been used in bow-making by Native Americans. They have lots of beneficial traits including the fact that they're easy to grow.
Many people enjoy this tree, but it does have a downside to consider before planting in your yard. The Bois d'arc tends to be very thorny and produces a fruit that's not edible and might end up littering the lawn. Overall, though, this is far from the worst tree on our list!
Box elders bring some uninvited guests
Although the Urban Ecology Center noted that most complaints about box elders are aesthetic, there are reasons not to plant one in a domestic yard besides its perception as an "ugly tree."
Although some aren't impressed by the brittleness of its branches or the susceptibility of its trunk to rot, the real problem is how frequently box elder trunks tend to be infested by boxelder bugs. They're also known to be messy, as they shed leaves and fruits often. But those bugs are the persistent pests to give box elder owners a headache.
Russian Vine just won't stop growing
According to Sunday Gardener, Russian Vine is known as a vigorous plant that can quickly grow out of control. Although this makes it a good plant to fill a wide, open space, it can be pretty destructive when placed near sheds or other structures.
That's not only because it will engulf the structure, but also because it will damage it by growing into the small cracks and spaces between its parts.
Eastern Red Cedar
Despite its name, the Eastern Red Cedar is actually a juniper tree. And while the Piedmont Master Gardeners identify the tree's common stock as why some tree planters turn their nose up at it, concerns about this tree aren't just based on snobbery.
Indeed, it can be an invasive tree that spreads to a weed-like degree and is especially considered a threat to the prairie ecosystems of Oklahoma and Kansas. It also should never be planted near apple or pear trees, as it's a known carrier of the cedar-apple rust disease that's infamous for affecting them.
The London Plane's problems are deeply rooted
According to the University of Redlands, the London Plane can be a minor nuisance for the number of twigs, fruits, and leaves it's known to drop. However, the real problem with this tree has to do with its roots.
These roots are known to be particularly strong, but it's easy to underestimate how menacing they can be. They're strong enough to lift sidewalks, but the real danger comes from how easily the roots can invade and damage sewer pipes.
The Paper Mulberry makes itself the only game in town
As problematic as Mulberry trees can be, it's also worth noting that the paper mulberry is a well-known menace. According to the University of Florida, that's because it's an invasive plant species that's been causing problems throughout Texas and the east coast of the United States.
Their growth is considered vigorous enough to both out-compete native species in their respective area and shade them out under the Paper Mulberry's dense brush.
Running Bamboo
Bamboo is a surprisingly polarizing plant, as some gardeners love it dearly while others consider it monstrously invasive. According to HGTV, this is partially due to a popular conflation of Clumping Bamboo with Running Bamboo.
Because while Clumping Bamboo tends to be fairly mannerly and not prone to overgrowth, Running Bamboo is all but guaranteed to grow beyond its planter's intended area and the network cautions people not to plant it without a containment plan. Typically, it's best to plant it in a large, wooden barrel.
Camphor Tree
Although Camphor Trees are beautiful, they also find a wide range of ways to be nuisances. According to The Spruce, their fruits are known to stain sidewalks and cars and the trees themselves are toxic to humans, cats, and dogs.
Their dense foliage also makes it difficult for other plants to survive underneath them, which is part of why Camphor Trees are considered an invasive species. Their roots are also known to spread aggressively, which can cause damage to buildings and pavement.
Japanese Knotweed
The Japanese Knotweed isn't a very popular plant, partially because of its reputation as an invasive species but especially due to its vaunted destructive power. According to Groundwork, they can infiltrate and clog pipes just as effectively as some tree roots, but they can also find their way into just about anything.
That means that if they grow toward sidewalks, they're likely to find cracks and spaces and grow into them, thus eventually breaking them apart. Unlike some other plants with similar issues, Japanese Knotweeds can cause similar damage to stone and brick walls and even find their way into the foundations of homes.
Saltcedar
According to the National Invasive Species Information Center, a Saltcedar or Tamarisk plant is considered a particularly destructive invasive species. But while plants of this status tend to wage their destruction by shading out other plants around them, the Saltcedar comes by its negative reputation another way.
As their name would suggest, they're known to ruin soil by causing large salt deposits to form underneath them. Even more seriously, these deposits can put local water tables at risk of lowering.
Hackberry
Hackberry trees should be approached with caution when considering yard planting. These trees often fall prey to leaf spot fungi, detracting from their overall aesthetic appeal. Furthermore, their initial growth years demand meticulous pruning to prevent the development of weak, prone-to-breaking limbs. Neglecting this crucial step can result in hazardous limb breakages, especially with narrow, V-shaped crotches forming frail branch collars. Adding to their drawbacks, hackberry trees feature serrated leaves that can induce skin irritation, leaving an uncomfortable, stinging sensation. All these factors combined make hackberry trees less than desirable for your yard, requiring careful attention and offering little in return.
Manchineel
The Manchineel tree, found natively in Southern Florida and other global regions, is unequivocally a tree to avoid planting on any property. Every part of this deceptively benign-looking tree spells danger for humans. Its bark and leaves should never be touched or ingested. The tree bears a sweet apple-like fruit, yet consuming it can lead to severe consequences, including internal bleeding, edema, and shock. But the peril doesn't stop there; the Manchineel tree harbors a poisonous milky sap when in contact with the human body, which induces agonizing burning and blistering. Prudent avoidance of this treacherous tree is essential to ensure the safety of both property and life.
Namibian Bottle Tree
When considering trees to avoid planting, the Namibian Bottle tree should top the list. This desert-dwelling oddity takes on a distinctive bottle-like shape, but its contents are far from refreshing. The water stored within its trunk is poisonous and fatal to animals and humans. Strangely, this deadly water is a clever defense mechanism against desert creatures that would otherwise drain the plant dry. To further safeguard itself, the tree sports thorny branches, deterring any threats. Fortunately, the Namibian Bottle tree is rarely found in human habitats, and its unique appearance makes it hard to miss. Mostly confined to Namibia, Africa, encountering this tree in your lifetime is a rarity.
Sandbox or Dynamite
The Sandbox, or Dynamite tree, is a botanical menace that should never find a home in anyone's yard. With its bark adorned in menacing spikes, this tree is appropriately nicknamed "Monkey No-Climb" as even the bravest creatures dare not approach it. The Sandbox tree boasts a doubly sinister trait: its sap is toxic to humans, making it a menacing addition to any environment. But that's not all – the tree's large pods earned it the moniker "Dynamite" for a reason. These pods explode, catapulting hefty seeds at dangerous velocities from up to 200 feet, posing a grave risk to anything beneath. Avoid this tree at all costs.
Milky Mangrove
The "Milky" Mangrove, primarily found along tropical coastlines, is a tree that should be avoided in most planting scenarios due to its hazardous nature. Despite its picturesque appearance along coastal landscapes, this tree harbors a toxic composition that poses a significant threat to various living organisms, including humans. When any part of the tree is scratched or cut, a milky sap oozes out, and contact with this sap can have dire consequences. Human skin exposed to it can lead to painful blisters and swelling, while contact with the eyes can result in blindness. While it may enhance coastal scenery, the Milky Mangrove's toxic sap makes it a dangerous choice in areas inhabited by humans.
Bunya Pine
The Bunya Pine, native to Australia, is a tree that should be carefully considered before planting in your yard, if at all. While its impressive size and unique appearance may initially seem appealing, it harbors features that make it an undesirable choice for many landscapes. One significant drawback is its massive cones, weighing up to 10 kilograms, which can become a hazardous nuisance when they drop from great heights. These cones are dangerous to property and people and attract large wildlife like possums, which can become a nuisance. Additionally, the Bunya Pine's extensive root system can wreak havoc on underground utilities and structures, making it an impractical choice for urban or suburban yards.
Strychnine
The Strychnine tree, native to Southeast Asia and India, is a botanical menace that should be avoided in most planting scenarios. The fatal reputation stems from the production of the potent strychnine chemical, notorious for its historical use in chemical warfare. This toxic substance is primarily concentrated within the seeds, and even ingestion of a small amount can lead to severe consequences, including dizziness, paralysis, and agonizing muscle cramping. Consuming any part of this tree can be fatally disastrous. Despite its deadly nature, there are limited medical applications, such as cancer treatment, but its extreme toxicity makes it a poor choice for most environments.
Wild Cherry
The Wild Cherry tree, often used for yard landscaping along fence lines, can become a hazard under certain conditions. While seemingly harmless in normal circumstances, these trees turn ominous when subjected to stress, such as storms. This stress triggers the breakdown of glycosides within their leaves, releasing a toxic component known as prussic acid. Ingesting only 1.2 pounds of wilted leaves from a Wild Cherry tree can be fatal to animals or humans. It's crucial to clear wilted leaves from livestock grazing paths and wash hands thoroughly after contact. Recognizable by its distinctive white flowers, this tree's poisoning symptoms include headaches, dizziness, vomiting, and, in extreme cases, death.
Angel's Trumpet
The Angel's Trumpet tree, native to South America, is a perilous choice for any yard due to its profoundly dangerous nature. Every part of this tree contains a cocktail of toxic compounds, including scopolamine, alkaloids, atropine, and hyoscyamine. Ingesting any portion of this plant can lead to severe consequences, ranging from memory loss and hallucinations to paralysis and even death. Despite its captivating array of flower colors, including white, yellow, pink, and orange, the Angel's Trumpet is far from an ideal choice. Moreover, it's becoming increasingly rare as it edges toward extinction. Caution should prevail when considering this tree for landscaping, given its inherent risks.
Pong Pong
The "Pong Pong" tree, native to South and Southeast Asia, is unequivocally one of the worst choices for yard landscaping due to its highly toxic nature. This ominous tree harbors noxious chemicals within its leaves and fruits that can prove fatal if consumed by humans. It poses a grave danger, especially in households with children who might inadvertently ingest its poisonous parts. With no redeeming qualities to offer, planting the "Pong Pong" tree is not advisable for any responsible homeowner. Prioritizing safety and well-being, it's crucial to steer clear of this perilous plant and opt for safer and more suitable alternatives in your yard.
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