Forestry mulching in Mount Pleasant & Charleston

There's no price list here, on purpose: no two pieces of ground are the same. Josiah walks it and gives you a straight number. What it comes down to:

• How thick it is. A dense thicket of vines and saplings takes longer to grind through than open ground with scattered brush.
• Size of what's growing. Brush and saplings go quickly. The bigger the trees, the slower the work.
• How much ground. The area to be mulched, and how much of it means working around trees you're keeping.
• Access. Whether the machine can drive straight in, or has to come through a gate or a side yard.
• Ground conditions. Soft, wet ground has to dry out before a machine can work it without rutting.

Most clearing leaves a pile behind: brush, limbs and small trees that have to be loaded out. On ground that is going to stay natural, that pile is the part nobody needed.

Forestry mulching: a mulching head grinds the brush and small trees where they stand and leaves them as a layer of wood chips over the ground. Nothing to haul and nothing to burn. It suits ground you want open and walkable, not ground that is about to be built on or sodded, because the chips and stumps stay.

Not a problem so much as a job: the woods are there, but the undergrowth means nobody can walk them.

Mulching a path through the understory. The brush and saplings along the line are ground into chips that stay on the ground, and the trees on either side are left alone.

One machine that cuts and cleans up at the same time. A mulching head, a spinning drum or disk fitted with teeth or blades, grinds brush, vines and small trees where they stand and leaves them on the ground as wood chips. Forest Service researchers call it mastication, and forest managers use it to grind down competing brush, free up young trees and prepare ground for new growth (USDA Forest Service, RMRS-GTR-381, 2018).

For some ground. Mulching leaves nothing to haul off and nothing to burn, and the chips cover the soil instead of leaving it bare. A 2018 Forest Service review of the research found ground under mulched chips lost less soil than bare ground, with erosion slight as long as the chip layer stayed (RMRS-GTR-381). The trade-off is that the chips, stumps and roots all stay too, so for anything you'll build on, pour, dig or sod, clearing and hauling is the better call.

Not on top of it. Clemson Extension's lawn guide calls for removing all debris from the area to be planted, large roots and old tree trunks included (HGIC 1203), and the residential building code requires vegetation and topsoil to be removed from under a concrete slab (IRC R506.2). If a lawn or a building is the plan, the stumps get pulled and the ground gets cleared properly. Mulching is for ground that will stay natural.

Not out of the ground. A mulching head leaves a stump behind, ragged or clean-cut depending on the type of head (USDA Forest Service, RMRS-GTR-381), and the roots stay where they are. Roots left in the ground can come back: sweet gum in particular regrows from its roots (USDA Forest Service, Silvics of North America). Where a stump will be in the way, it gets pulled with the excavator instead.

Have it looked at first. Federal rules leave out cutting vegetation above the ground, like mowing or rotary cutting, as long as it doesn't substantially disturb the root system or push soil around (33 CFR 323.2(d)(2)(ii)). Mechanized land clearing that does disturb the soil can count as a regulated discharge in a wetland, which can need an Army Corps of Engineers permit (33 CFR 323.2(d)(1)(iii)). Rutting soft ground is soil disturbance, so on low, wet ground a wetland delineation comes first, and the work waits for the ground to dry.

Treat it like any other clearing and ask before it's scheduled. The Town says clearing and grading that disturbs or alters land on a single-family lot needs its stormwater management and tree preservation permit first. Protected trees need their own approval whatever takes them down, and trees in a buffer, a critical area, an easement or a right-of-way can be protected at any size or species.