If you have bought bulk mulch in Southern Maine, you have probably noticed that not all mulch looks or performs the same. Some has a fine, consistent texture. Some is coarse and uneven. Some holds its color through the season. Some fades in six weeks. A lot of it comes down to how the material was processed, and specifically, how many times it went through the grinder.
What Does Triple-Ground Mean?
Grinding is the mechanical process that turns raw wood material into mulch. Single-ground mulch goes through the grinder once. Double-ground goes through twice. Triple-ground, which is the standard for all Beaulieu Logging bark mulch products, goes through three times.
Each pass refines the material further. The first pass breaks down large pieces. The second creates a more consistent texture. The third produces the fine, uniform product you see in our yard, material with a consistent particle size, clean appearance, and tight, even surface coverage.
Why Does Grinding Pass Count Matter?
Single-Ground
Inconsistent. Large chunks mixed with fine material. Irregular coverage. Rough appearance.
Triple-Ground
Uniform. Spreads evenly, looks clean, packs into a consistent layer. Better moisture retention and weed suppression.
What Is the Mulch Actually Made From?
This is the question most buyers never think to ask, and it matters as much as the grinding.
Most bag mulch and a lot of bulk mulch is made from wood waste: construction debris, demolished pallets, discarded dimensional lumber, and mixed wood material. It is ground and often dyed to look like bark mulch. It can contain treated wood, painted wood, and materials you do not want near food gardens or children's play areas.
Beaulieu Logging mulch is made from bark. Specifically, from the timber our logging crews harvest in Maine, trees that were standing in a Maine forest, cut by our crews, transported to our Lyman yard, and processed on-site. The raw material is real bark and wood from real trees. No construction debris. No pallets. No recycled waste material mixed in.
Does the Source Material Really Make a Difference?
Yes, in two meaningful ways.
First, performance. Real bark mulch breaks down into organic matter that improves soil over time. Construction-debris mulch can introduce contamination and does not contribute to soil health the same way.
Second, appearance. Dyed mulch from processed waste material fades faster and looks different from real bark mulch once you compare them side by side. Natural and hemlock products in particular have color and texture that comes from the material itself, not from dye applied over lower-quality material.