The importance of mulching our trees

Mulching is an essential practice for maintaining healthy trees in any environment, and Melbourne, is no exception. With its diverse climate and unique ecosystem, proper mulching techniques can make a significant difference in the health and vitality of trees in the region.

The famous Angel Oak Tree - and a healthy cover of mulch.

Why is Mulching is Important?

1. *Moisture Retention:*

Mulch acts as a barrier, helping to retain moisture in the soil. In Melbourne's often dry and hot climate, this can be crucial for the survival of trees, especially during periods of drought.

2. *Weed Suppression:*

Mulch helps to suppress weed growth around trees, reducing competition for nutrients and water. This allows trees to thrive without having to compete with invasive plants for essential resources.

3. *Soil Health:*

As organic mulch decomposes, it enriches the soil with nutrients, promoting healthy root development and overall tree growth. This is particularly beneficial in Melbourne's sometimes nutrient-poor soils.

4. *Temperature Regulation:*

Mulch acts as insulation, protecting tree roots from extreme temperatures, both hot and cold. In Melbourne, where temperature fluctuations can be significant, this insulation can help buffer the effects of weather on tree roots.

Mycorrhizal Fungi is the key to better soil and plant health.

How do you mulch correctly?

1. *Choose the Right Mulch:*

Opt for organic mulches such as wood chips, bark, or compost. These materials decompose over time, adding nutrients to the soil. Avoid using plastic or rubber mulch, as they do not provide the same benefits and can even harm tree health.

2. *Apply the Mulch Correctly:*

Spread a layer of mulch around the base of the tree, extending out to the drip line (the outermost reach of the tree's branches). The mulch layer should be 3cm deep, but avoid piling mulch against the trunk, as this can promote rot and disease.

3. *Mulch Maintenance:*

Periodically check the mulch layer and replenish it as needed, especially after heavy rain or wind. Remove any weeds that may sprout in the mulch to prevent them from competing with the tree for resources.

4. *Mulch Depth:*

In Melbourne's climate, where moisture retention is crucial, aim for a slightly thicker mulch layer of around 4 inches. This helps to maximise moisture retention and provide adequate insulation for tree roots.

By following these guidelines for mulching trees in Melbourne, you can help promote the health and longevity of your trees, contributing to the beauty and biodiversity of the urban landscape. Remember, proper mulching is an investment in the future health of your trees and the environment as a whole. If you require some expert assistance, get in touch!