If you’ve ever seen trees with white paint on their lower trunks, it’s not for decoration—it’s a practical protective method used by gardeners and orchard owners.
During winter, trees can experience sudden temperature changes between cold nights and warm sunny days. This stress can cause the bark to crack, a problem known as sunscald. To prevent this, people apply a light-colored coating that reflects sunlight and keeps the trunk from overheating.
This method is especially useful for young trees and fruit trees, which have thinner, more vulnerable bark. A common approach is using water-based latex paint, often diluted with water to make it easier to apply. Some gardeners also add extra materials for added protection, such as pest deterrents, and they usually brush it on by hand to ensure full coverage.
The process is typically repeated once a year as part of seasonal tree care.
It’s also important to note that not all tree markings mean the same thing. While white paint is used for protection, other colors like orange or purple may indicate things such as removal plans or property boundaries.
In short, a white-painted tree trunk is a sign of care and protection, helping the tree stay healthy and strong through changing weather conditions.
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