Tree Mulch: Common Mistakes Homeowners Should Avoid

Mulch is a common sight around trees throughout Burlington and North Central Indiana. It can make landscaping look cleaner while helping conserve soil moisture and moderate temperatures.

But more mulch isn't necessarily better.

When mulch is installed incorrectly, it can actually create problems for the tree.

Why Homeowners Use Mulch Around Trees

Properly applied mulch can provide several benefits.

It can help:

• Retain soil moisture

• Moderate soil temperatures

• Reduce competition from grass

• Add organic material as it breaks down

• Make landscape beds easier to maintain

These benefits make mulch particularly useful around established landscape trees.

The “Mulch Volcano” Problem

One of the most common mistakes is piling mulch high against the trunk.

This creates what is sometimes called a mulch volcano.

Instead of spreading mulch evenly across the root zone, homeowners may create a tall mound around the trunk.

This can keep the bark unnecessarily damp and hide the natural transition between the trunk and roots.

How Much Mulch Is Appropriate?

A relatively shallow, even layer is generally preferable to a deep mound.

Mulch should cover the surrounding soil without being piled directly against the trunk.

The goal is to create a protective layer over the soil rather than bury the tree.

Keep Mulch Away From the Trunk

One of the easiest improvements homeowners can make is simply leaving space around the base of the tree.

The trunk should remain visible rather than disappearing underneath a pile of mulch.

This also makes it easier to notice changes around the base of the tree.

Mulch Shouldn't Replace Good Soil Management

Mulch can help protect soil, but it isn't a solution for every landscape problem.

Homeowners should still consider:

• Drainage

• Soil compaction

• Water availability

• Existing vegetation

• The size and age of the tree

A good landscape balances these factors rather than relying on mulch alone.

Fall Is a Good Time to Refresh Landscape Beds

October is often when homeowners are completing fall landscaping projects.

If you're refreshing mulch around trees in Burlington, Kokomo, Russiaville, or surrounding communities, take a few extra minutes to make sure the material isn't piled against trunks or applied excessively.

Small changes in how mulch is installed can make a big difference to the long-term health of landscape trees.