Mulching is a simple yet misunderstood practice. When done correctly, mulching promotes healthy growth and improves soil quality. However, piling mulch against the trunk blocks the oxygen supply to the tree roots and causes the bark to rot. Volcano Mulching is thus harmful and should be avoided. For proper tree maintenance in Edmonton, it is essential to contact professional arborists. They will help to understand the donut method and the use of arborist wood chips, which can improve the tree’s health.
What are the benefits of mulch?
Helps in moisture retention
Mulch helps retain soil moisture and reduce evaporation during dry periods. A proper amount of mulch is thus essential to ensure that the tree roots receive continuous hydration. This is especially important for the trees during the dry spring seasons.
Helps with weed suppression
Mulch acts as a natural barrier, preventing weed growth and allowing the trees to access the nutrients and water they need to thrive.
Helps with temperature regulation
Mulch helps regulate soil temperature by insulating the ground. It keeps the roots cooler in summer and protects them from freezing in winter. Thus, the roots get a stable environment and temperature for continuous growth.
The “Volcano” danger – Why does it harm trees?
Although mulch is beneficial, it can be harmful when applied incorrectly. This is a common mistake made by unknowing homeowners. Thus, for proper tree maintenance in Edmonton, piling mulch correctly is essential to avoid a volcano shape.
Collar rot and bark damage
When excessive mulch is applied too close to the trunk, it can trap moisture, leading to root decay. This condition is known as collar rot. This weakens the tree’s natural defensive power and eventually leads to structural failure.
Suffocation of the cambium layer
The layer beneath the bark, known as the cambium, is responsible for transporting nutrients and water throughout the tree. When mulch piles up, it restricts oxygen flow to the layer and can cause suffocation. This disrupts the tree’s internal growth.
High risks of pest infestation and girdling roots
Volcanic mulch creates a damp environment around tree trunks, attracting insects and pests. Moreover, the roots begin to grow upward instead of outward from the soil if the mulch is applied incorrectly. This situation is known as a girdling root. These roots wrap around the trunk, cutting off air circulation. Girdling roots gradually kill the tree.
The “Donut” method – What is the proper mulching technique?
Create a donut-shaped ring
Arborists advise that instead of piling mulch, it should be applied in a flat and circular ring method around the tree trunk, which is known as the donut method.
Maintain appropriate depth
Apply the mulch at a depth of 3 to 4 inches. This helps in moisture retention. This also helps suppress weeds without suffocating their roots.
Keep space around the trunk
It is always essential to leave at least 6 inches of space around the trunk when applying mulch. This keeps the bark dry and prevents pest infestation.
What are the right mulch materials?
While decorative rocks and rubber mulch might look attractive, they do not have biological benefits. Arborist wood chips are the best option. They easily decompose and provide nutrients to the soil as organic matter. On the other hand, decorative rocks trap heat and impede root development.
Mulching is thus an important part of tree care. It is essential to avoid harmful practices like mulch volcanoes. Give your trees the best start this spring. Get in touch with Trusty Tree. Ask our arborists about proper mulching and soil care during your next visit.
📞 Call us for a free estimate 780.860.5500
🔗 Visit our website to learn more https://trustytree.ca/
Trusty Tree Services supports municipal and utility projects while delivering safe, efficient tree care to industrial, commercial, and residential clients in the Edmonton and surrounding area.
Related Articles
Follow Us on Social Media
Stay updated with our latest news and tips by following us on Facebook and Instagram