
Why are my tree trunks splitting?
Read on to find out. Frost cracking or sunscald is the leading cause of splitting tree trunks. A frost crack refers to vertical cracks resulting from alternating freezing and thawing temperatures in tree trunks. It occurs on the south to the southwest side of tree trunks on young trees with thin bark.
Can You prune a split trunked tree?
You can apply it to the split trunk just like any traditional tree pruning sealer, after which the trunk will be sealed and protected from damage. Of course, mending a tree using the aforementioned technique isn’t always an option.
Why is there a crack down the middle of my tree?
As such, it’s discouraging when you discover a massive crack running straight down the middle of your tree’s trunk. Whether it’s from strong winds, ground erosion, stress or a combination thereof, split trunks can prove devastating for trees.
What is a split tree?
Split trees also occur during the winter or early spring seasons when they are constantly freezing and thawing due to varying temperatures. This is known as frost cracking. Frost cracking displays itself through vertical cracks in trees.

What causes a tree trunk to crack vertically?
These vertical cracks form when a tree trunk is exposed to extreme changes in temperature between winter and summer. The repeated heating and cooling can cause the molecules to slightly expand and contract just enough that a bark crack can form as a reaction to the extreme changes.
Can you save a tree with a split trunk?
Can a split tree be salvaged? First, assess the damage or hire a professional arborist to evaluate your tree for you. If the split doesn't run all the way down to the ground and there's no sign of decay or infestation, the tree will be able to heal itself, although it may still require some help.
What would cause a tree to split down the middle?
On a warm winter days, the direct sun's heat warms up the surface of the bark. Later that night, these areas rapidly re-freeze. It's this expansion and contraction of plant cells that cause cracks to burst open internally in the tree.
What does it mean when a tree trunk splits?
Trunks split for a variety of reasons. Bark inclusions often cause splits in the trunk. Inclusions result from bark becoming trapped in the union of two trunks or between a branch and the trunk. This represents a weak point in the trunk that can result in cracks and tree failure (see photos).
How do you treat a split tree trunk?
1:374:05How to Repair a Split Tree - YouTubeYouTubeStart of suggested clipEnd of suggested clipI opened up a split. And used a popsicle stick to apply the glue to both sides of the split. You canMoreI opened up a split. And used a popsicle stick to apply the glue to both sides of the split. You can see the glue starting to expand and fill in the space in the picture.
How do you treat a tree that has a split bark?
Damaged areas of the bark or limbs should not be filled with a sealer or painted. Lightly trimming the wound (tracing the injury with a sharp knife) to help the tree compartmentalize the exposed area and wrapping the damaged area with a light-colored tree wrap can help accelerate the healing process.
What is it called when a tree trunk splits into two?
A tree fork is a bifurcation in the trunk of a tree giving rise to two roughly equal diameter branches. These forks are a common feature of tree crowns. The wood grain orientation at the top of a tree fork is such that the wood's grain pattern most often interlocks to provide sufficient mechanical support.
How do you repair a damaged tree trunk?
To repair this type of damage, cut off any ragged bark edges with a sharp knife. Take care not to remove any healthy bark and expose more live tissue than necessary. If possible, the wound should be shaped like an elongated oval, with the long axis running vertically along the trunk or limb.
Can half a tree survive?
Saving A Half-Dead Tree In many cases, the answer is a resounding YES! And in other cases, the answer is NO — with the possibility of renewed life from root systems that still have the capacity to sustain tree life.
Why is the bark on my oak tree splitting?
In springtime, peeling bark near the base may be simply part of the natural exfoliation process. Think of it like a lizard shedding its old skin. As your trees are 'awakening' from dormancy, the outer layers that have since died are now splitting to make room for regrowth and expansion of trunk diameter.
Should I wrap a damaged tree trunk?
If you're hoping to protect your damaged tree by wrapping it, then you're in for a big surprise. Wrapping is no longer recommended as a treatment for wounded trees. It actually does more harm than good. Your tree will be better off if you put down the wrap and pick up a water hose.
How do you save a damaged tree trunk?
InstructionsClean the tree wound with water (nothing else).Gather the bark pieces and fit them back onto the tree. Check to be sure you place the bark, so it's growing in the right direction.Secure the bark with duct table wrapped around the tree trunk.Remove the tape within a year if it is still secure.
How do you repair a damaged tree trunk?
To repair this type of damage, cut off any ragged bark edges with a sharp knife. Take care not to remove any healthy bark and expose more live tissue than necessary. If possible, the wound should be shaped like an elongated oval, with the long axis running vertically along the trunk or limb.
How do you wrap a damaged tree trunk?
1:223:49Tree Wrap for Damaged Trees - YouTubeYouTubeStart of suggested clipEnd of suggested clipEven plain mic colored cloth can be used as a tree wrap to protect young trees against Sun scald tarMoreEven plain mic colored cloth can be used as a tree wrap to protect young trees against Sun scald tar impregnated paper tree wrap can be used which will prevent insects.
What is it called when a tree splits?
A tree fork is a bifurcation in the trunk of a tree giving rise to two roughly equal diameter branches.
What does it mean when a tree trunk splits?
Trunks split for a variety of reasons. Bark inclusions often cause splits in the trunk. Inclusions result from bark becoming trapped in the union of two trunks or between a branch and the trunk. This represents a weak point in the trunk that can result in cracks and tree failure (see photos).
What does a crack in a tree trunk mean?
Cracks in tree trunks can be one of the major indicators of an unstable tree. Most cracks are caused by improper closure of wounds or by the splitting of weak branch unions. They can be found in branches, stems or roots, and vary in type and severity. There are horizontal and vertical cracks.
Can you save a tree with a split trunk?
Can a split tree be salvaged? First, assess the damage or hire a professional arborist to evaluate your tree for you. If the split doesn't run all the way down to the ground and there's no sign of decay or infestation, the tree will be able to heal itself, although it may still require some help.
Can a tree split in half survive?
After careful pruning of broken branches, give the tree some time to recover. A final decision can be made later.An Easy Call : A mature shade tree can usually survive the loss of one major limb. The broken branch should be pruned back to the trunk.
What can cause a tree trunk to split?
Over watering and overfertilizing can also kill roots and result in trunk splitting. Cold damage and trunk disease can cause splits and cracks.
Can you repair a tree that split?
Yes, a split tree can grow back together if the damage is not extensive and if you act fast. Using nuts and bolts, you can reattach the split trunk to offer support and allow nutrients to pass through. This, however, needs patience because it may take months before the tree regains its shape.
Can a split tree fuse back together?
It is rarely possible to successfully reattach broken limbs. Trying to cable or tie them back to the main trunk is almost always wasted energy. Unlike people, woody plants are unable to heal damaged tissues. Instead, they compartmentalize wounds with layers of cells that prevent the damage from spreading any further.
Potential Tree Trunk Splitting Causes
Severe changes in weather or temperature cause tree trunk splitting. During the winter, a phenomenon known as sunscald may occur. Sunscald happens during the winter when the sun warms up the tree during the day and then the tree freezes at night.
What to Do If Your Tree Splits
Many trees survive splits if they are not too deep. In these cases, you have a couple of options to repair the tree. Otherwise, tree trunks splitting completely in half must be removed by a professional.
Contact an Expert in Marietta, GA
If you notice a tree trunk splitting in your yard, contact SoutheastTree. We offer affordable tree removal services 24/7, in case of emergency. We also offer free custom quotes catered to your needs.
What Causes a Tree Trunk to Split: Potential Causes of Tree Trunk Splitting
Tree trunks can split for various reasons. Some of the most common reasons include:
What To Do if Your Tree Trunk Splits
As soon as you notice a damaged tree with a split tree trunk, your best course of action is to consult a professional tree care service to determine the severity of the problem and whether it warrants removing the tree.
Contact a Tree Service Expert in Wilmington, NC, for a Free Quote Today!
We hope we have adequately answered the question, “What causes a tree trunk to split?” for you.
Shifting Temperatures
The most common cause of a split tree trunk is frost crack. If you’re living in an area with a temperate climate, the temperature shift can damage the trunk. During cold weather, tree trunks contract, while during warm weather, trunks will expand. The constant size shift will cause vertical cracks.
Pest and Disease Damage
Insect pests and diseases can cause cracks along a tree trunk, especially if left untreated. Wood-eating insects such as termites, carpenter ants, and long-horn beetles can cause holes through the trunk. If the infestation becomes severe enough, the number of holes will weaken the trunk and cause a complete split.
Physical Damage
Physical forces can also damage tree trunks. Natural disasters such as earthquakes and tornadoes can split tree trunks. Lightning strikes can split a tree trunk and burn the tree as well.
5.My Tree Trunk Split at the Ground Level – Home Guides
Summary: One of the most common causes of vertical splits in tree trunks is frost cracks, which often result from alternating cold and warm temperatures.
7.Crack In Your Tree Trunk? – 72 Tree
Summary: Frost Crack Causes … These vertical cracks form when a tree trunk is exposed to extreme changes in temperature between winter and summer. The repeated heating …
8.Cracks Can Cause Hazards in Trees – Tree Care Industry Association
Summary: Cracks in tree trunks can be one of the major indicators of an unstable tree. Most cracks are caused by improper closure of wounds or by the splitting of …
9. Bark Splitting on Trees: Various
Summary: Splits can occur on the trunk of the tree as well as on branches. Trees which are most … There is no single reason for bark splitting on trees.
Why is there a crack or splitting tree on my property?
Trees with thinner bark will typically have more splits and cracks naturally occurring. Bark splitting and cracking often results from a number of environmental factors. This is not to be confused with bark “sloughing.”
Why does my tree bark split?
Trees with thinner bark will typically have more splits and cracks naturally occurring. Bark splitting and cracking often results from a number of environmental factors. This is not to be confused with bark “sloughing.”. Sloughing occurs when a tree’s bark will change its texture as it ages and peel or “slough” off.
How to prevent frost cracks?
Be sure to water your young tree in times of drought and also fertilize trees annually. If you find damage from frost cracking, remove any loose hanging bark.
How to get rid of dead bark from frost?
If you find damage from frost cracking, remove any loose hanging bark. Use a sharp knife or wood chisel to give a clean cut to the wound area so the dead bark is not impeding the growth of the callous or “wound wood” that will grow to attempt to compartmentalize the decay of the wound. This operation can be performed by a local tree service that employs Certified Arborists if you are unable to do so or not confident in your abilities.
What does it mean when a tree sloughs?
Sloughing occurs when a tree’s bark will change its texture as it ages and peel or “slough” off. This sometimes appears like exfoliating all over the trunk. What we’re talking about is defined cracks or splits in the bark.
Can you wrap a tree trunk with white paper?
Sun Scald and frost cracks are all but impossible to prevent. Some property owners have had limited success with wrapping the trunks of young trees with reflective, white paper in the late fall to help insulate the tree better.
Can a frost crack hurt a tree?
These slightly sunken, discolored areas start to lose bark from the decaying tissue. Small frost cracks don’t typically cause serious damage to trees. However, they can provide openings where certain disease organisms may enter. This is especially true if the tree is in a weakened condition.
What is a woodsman company?
The Woodsman Company offers tree planting, tree pruning and shrub trimming, tree removal and stump grinding as well as a tree wellness program.
Why is the trunk important?
The trunk is the single most important natural structure of a tree. It’s responsible for providing stability, as well as absorbing much-needed water and nutrients. As such, it’s discouraging when you discover a massive crack running straight down the middle of your tree’s trunk.
Can you order tree pruning sealer over the internet?
And in the event that you are unable to find it locally, you can always order a bottle over the Internet. Tree pruning sealer is ideal for situations such as this, so don’t skip this critical step.
Can you use shellac to seal a split tree?
You can apply it to the split trunk just like any traditional tree pruning sealer, after which the trunk will be sealed and protected from damage. Of course , mending a tree using the aforementioned technique isn’t always an option.
Can you mending a tree that splits?
Of course, mending a tree using the aforementioned technique isn’t always an option. If your tree’s trunk is split significantly on one side rather than going straight down the middle, it may be best to simply cut away the damaged section.
Can you mend a split tree?
Assuming the split is straight down the middle, and it’s not too deep, you may be able to mend it. Before doing so, however, you should trim away some of the branches and excess growth so there’s less weight pushing against the trunk.
Can a tree survive a split tree trunk?
It is possible to save a split tree trunk if the split is not extensive. You can use nuts and bolts to join the split trunk to help it heal. If the tree’s damaged area is less than 25% of the trunk’s circumference, it can heal gradually and survive. However, if more than 50% of the tree’s crown is gone, it may not be possible to save the tree because it will lose its survival edge.
Will a split tree grow back together?
Yes, a split tree can grow back together if the damage is not extensive and if you act fast. Using nuts and bolts, you can reattach the split trunk to offer support and allow nutrients to pass through. This, however, needs patience because it may take months before the tree regains its shape.
Can a broken tree trunk be repaired?
Yes, a broken tree trunk can be repaired. The best way to repair a broken tree trunk is by bracing or cabling it to provide much-needed support. If the attachment area is thicker, the tree can still share nutrients and heal. It is, however, critical to contact an arborist to get the best advice depending on the extent of the damage.
How to heal a sunscald tree?
This causes the inner bark to die and split. If your tree is suffering from sunscald, let it heal on its own. Avoid filling the damaged bark with paint or sealer as it may interfere with the tree’s natural healing. Trim the wound lightly using a sharp knife to allow the tree to compartmentalize the damage faster.
How to repair a tree trunk that has been damaged?
Remove the tree’s wound completely. You can also repair damaged tree trunks by removing the wound completely. Start by removing the edges of the bark then cut the wound. This allows tree heal better and faster. By so doing, you will enable the tree to transport the necessary nutrients and continue growing properly.
Why is it important to hire an arborist?
It is essential to hire a qualified arborist because the professional will know how to handle the tree better. More so, he/she will have all the necessary tools for the task and assures you of professional results.
How big should a tree washer be?
The washers should be at least 3-inches in diameter and will allow you to tighten the nut and bolt without a hassle. Also, they will prevent you from digging too deep into the tree’s trunk. Step 2- Always keep an eye on the split or crack, and do not overtighten as you may damage the tree.
