What Are Tree Guards Used For?

Tree guards are crucial tools in forestry, landscaping, and gardening, designed to protect young trees during their most vulnerable stages of growth. By understanding the specific uses of tree guards, you can better appreciate their importance and select the right type for your needs.

Protection from Wildlife and Browsing Animals

One of the primary functions of tree guards is to shield young saplings from wildlife. Animals such as rabbits, deer, and rodents often pose significant threats to young trees during their establishment phase.

These animals may chew on the bark, leaves, or shoots, which can cause severe damage or even kill the tree. Tree guards act as a physical barrier, preventing these animals from reaching the tree and causing harm.

Common Wildlife Threats

Rabbits and Rodents: These smaller animals are notorious for gnawing on the lower portions of the tree trunk, particularly during winter when food is scarce. Mesh tree guards or plastic sleeves are particularly effective in deterring them, as they prevent access to the bark without obstructing air flow or sunlight.
Deer: Deer can cause considerable damage by rubbing their antlers against the trunks of young trees or browsing on the foliage during velvet shedding season. Taller tree guards, often made from more rigid materials like corflute, are essential in areas where deer are prevalent.
Possums and Wallabies: Australian native animals can also damage young plantings through browsing and bark stripping. Guards need to be tall enough and secure enough to prevent these agile animals from accessing tender growth.
Livestock: In rural settings, cattle, sheep, and horses can trample or browse young trees. Robust guards provide essential protection in paddock plantings and farm revegetation projects.

For individual trees or smaller plantings, this 10-pack of large metal mesh guards provides durable protection that allows excellent ventilation while keeping rodents at bay. The open mesh design ensures air circulation while creating an impenetrable barrier against gnawing pests.

When dealing with larger animals or extensive planting projects, these 450mm corflute guards in 100-pack bundles offer the height and rigidity needed to deter deer and larger browsing animals while being ideal for larger-scale revegetation work. Their solid construction prevents animals from reaching through to damage bark or foliage.

Weather Protection and Climate Stress Management

Young trees are especially vulnerable to extreme weather conditions during their first few growing seasons. Tree guards provide a buffer against these environmental stressors, helping to ensure the tree's survival and healthy growth.

Environmental Hazards Tree Guards Address

Wind Damage: Strong winds can physically damage young trees, particularly by causing the tree to sway excessively, which can disrupt root establishment and cause stem breakage. Tree guards help stabilize the tree, reducing the impact of wind and creating a calmer microclimate around the trunk.
Frost Protection: Frost can cause severe damage to the tender bark and shoots of young trees, particularly in inland and elevated areas. Tree guards help insulate the tree, providing some protection against frost damage by trapping heat from the ground and preventing direct frost contact with vulnerable tissue.
Sunscald Prevention: Excessive direct sunlight can lead to sunscald, where the bark becomes damaged due to rapid temperature fluctuations between day and night. Tree guards can shield the trunk from direct exposure, reducing the risk of sunscald particularly on the western and northern sides of the tree.
Hail Damage: In regions prone to severe storms, tree guards can provide a protective shield against hail impact, preventing bruising and splitting of tender bark and stems.

Securing guards properly with these 1800mm hardwood stakes ensures they remain anchored even in high winds, providing stable support throughout the establishment period. The extra length allows for deep ground penetration, which is essential in exposed or windy sites.

Prevention of Physical Damage from Equipment and Activities

In urban and landscaped environments, young trees are often at risk of accidental damage from lawn mowers, string trimmers, and other landscaping equipment. Tree guards act as a barrier between the tree and these potential hazards, ensuring that the trunk remains unharmed.

Even minor damage to the bark can create entry points for disease and pests, potentially compromising the long-term health of the tree. A visible guard alerts maintenance workers to the presence of the young tree and provides a buffer zone.

Common Sources of Mechanical Damage

Lawn Maintenance Equipment: Tree guards prevent damage during routine lawn care activities by creating a protective zone around the trunk, allowing maintenance tasks to be carried out without harming the tree. Whipper snippers and ride-on mowers are particularly hazardous to unprotected saplings.
Construction Activities: On construction sites, tree guards can protect young trees from accidental impacts with machinery or construction materials, preserving the health of the tree throughout the development process. Builders and contractors can easily identify protected trees and work around them safely.
Vehicle Traffic: In car parks and roadside plantings, guards protect against accidental vehicle contact, shopping trolleys, and other urban hazards that could snap or damage young stems.
Pedestrian Traffic: In high-traffic areas, guards prevent damage from people brushing past, children climbing, or dogs marking territory on the trunk.

For medium-scale landscaping projects requiring multiple guards, this 20-pack of medium metal mesh guards provides cost-effective protection against equipment strikes while maintaining visibility of the protected trees. The mesh design allows groundskeepers to see the tree trunk while working, reducing the risk of accidental contact.

Herbicide Shielding and Chemical Protection

Herbicides are commonly used in landscaping and agricultural settings to control weeds and other unwanted vegetation. However, these chemicals can be harmful to young trees if they come into contact with the leaves or bark.

Tree guards provide an effective barrier, preventing herbicide drift from reaching the tree and causing damage. This is particularly important when using non-selective herbicides like glyphosate, which can kill or severely stunt young trees even in small doses.

Chemical Management Benefits

Selective Application: Tree guards allow for the selective application of herbicides, enabling the surrounding vegetation to be managed without risking the health of the saplings. This makes weed control much more efficient and reduces the need for hand weeding around each tree.
Protection from Over-Spray: In areas where herbicides are frequently used, tree guards help protect against accidental over-spray, ensuring that the chemicals do not harm the tree. Wind drift during application is a common cause of unintended tree damage.
Residual Contact Protection: Guards prevent contact with treated vegetation that may brush against the young tree, transferring herbicide residues to sensitive bark and foliage.
Fertiliser Burn Prevention: Guards also protect against concentrated fertiliser contact, which can burn tender bark if granules accumulate against the trunk.

Supporting Healthy Growth and Establishment

In addition to protection, tree guards can also promote healthier growth by creating a microenvironment around the tree. This can help in retaining moisture, reducing weed competition, and improving overall growing conditions during the critical establishment period.

The sheltered environment within a tree guard can accelerate growth rates by reducing environmental stress and creating more stable growing conditions. Many growers report significantly improved survival rates when using guards compared to unprotected plantings.

Growth Enhancement Features

Moisture Retention: Some tree guards help retain moisture around the base of the tree, reducing the need for frequent watering and promoting steady growth. The guard reduces evaporation and protects the root zone from drying winds.
Weed Control: By physically blocking weeds from growing close to the tree, guards reduce competition for nutrients and water, allowing the tree to access more resources. This is particularly important in the first growing season when root systems are still developing.
Temperature Moderation: Guards can moderate extreme temperature fluctuations, keeping the trunk warmer at night and cooler during intense heat, reducing physiological stress on the developing tree.
Humidity Regulation: The space within a guard maintains slightly higher humidity levels, which can benefit young trees in dry climates by reducing transpiration stress.

Complementing your tree guards with these biodegradable 600mm jute mats creates an effective weed barrier around the base while naturally suppressing competing vegetation without chemicals. The mats gradually break down to enrich the soil, providing a double benefit of weed control and organic matter addition.

Choosing the Right Tree Guard for Your Project

Tree guards are an invaluable tool in the protection and nurturing of young trees. Whether you're dealing with wildlife, harsh weather, or the risks of urban environments, the right tree guard can significantly improve the survival and health of your trees.

Consider the specific threats in your location, the number of trees you're planting, and your budget when selecting guards. Metal mesh guards offer excellent durability and ventilation, corflute provides solid protection against larger animals, and plastic sleeves work well for herbicide protection and microclimate creation.

Most tree guards should remain in place for 2-3 years until the tree has established a strong root system and developed thicker bark. Regular inspection ensures guards aren't constricting growth and remain properly secured.

For more detailed advice on selecting the best tree guard for your needs, or for information on installation techniques, contact All Stake Supply. Our experts are ready to help you find the perfect solution to ensure your trees thrive.