Forestry Mulching vs. Bulldozing: Which Way to Clear Palmetto, Pine or Oak Hammock on a Jacksonville Lot?

How Each Method Works: Forestry Mulcher vs. Dozer

A forestry mulcher is a mulching head on a track or wheel skid steer or a dedicated carrier: a spinning drum fitted with steel teeth that grinds everything standing: underbrush, brush and small trees to 8 inches on our skid steer, larger trees on the 300-hp machine. It grinds brush into a layer of mulch and leaves the roots in the ground. Mulching leaves roots; that is the point and the limit. A bulldozer pushes. The blade and root rake take tree, stump and root ball together and leave bare sand. An excavator to pull stumps and a loader to feed the trucks follow. Bulldozing uses the labor of multiple machines; mulching uses a single machine and a single pass. Both are traditional clearing methods here; unlike bulldozing, mulching is a one-step process.

Cost Comparison: $2,700 Mulching Day vs. $165 an Hour Dozer Plus Haul-Off

Mulching services run $2,700 a day for the skid steer, transport included across Duval, St. Johns, Clay, Nassau, Baker and Flagler north of Palm Coast, or $4,100 a day plus transport for the 300-hp machine. By the acre, $1,400 to 2,300 on palmetto flatwoods. Bulldozing runs $165 an hour for the dozer with root rake and operator, plus debris at $650 to 1,200 per 10-yard load; a 3-acre flatwoods lot makes 8 to 12 loads. Full clearing to bare ground with stumps lands at $2,800 to 5,000 an acre. On a half-acre lot: mulched, one day, $2,700; pushed and hauled, a dozer day plus four to six loads. Case 1, 3 acres off CR 218, mulched in 2 days for $5,400. To clear land to bare dirt there would have doubled it. Open the online calendar and pick a walk-through slot, or call (904) 406-7990. I confirm by text the same evening.

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Speed: Acres a Day for Forestry Mulching vs. Bulldozing

The skid steer will clear one to two acres a day on palmetto and slash pine; the 300-hp machine two to three on pasture and wax myrtle. A dozer pushes faster on light brush, then loses the gain waiting on trucks. Mulching is faster on any job where the debris would otherwise leave the lot, which is most of them. Case 3: 12 acres near Callahan, 3 days, $12,300 plus transport. Case 5: 6 acres of scrub at Keystone Heights, 2 days, $7,200. Dense vegetation, chest-high palmetto under thick pine, drops the drum to an acre a day. Sapling pine and undergrowth under an open stand run at the top. A chainsaw crew behind either machine handles the trees as well as the brush where a protected oak is close. June to September adds a day to both on flatwoods.

What Happens to the Debris: Mulch Layer, Burn Pile or Haul Truck

Mulch stays. Two to four inches of wood chips that retain moisture, suppress palmetto resprout and start enriching the soil as the organic material breaks down. Brush piles from a dozer go one of two ways. Burning debris needs a Florida Forest Service burn authorization, and on a platted lot inside Jacksonville, Nocatee, Fleming Island or Palm Coast it is effectively out. Traditional methods, push and burn, died with that rule. Hauling runs $650 to 1,200 a load. Storm damage is the exception: fallen trees from Irma tangled with fence are a push and truck job; case 6, 2 acres in Julington Creek, 11 loads, $9,350. Cleanup after mulching is a rake; after a dozer, a week of trucks and a scar where the pile sat. Minimal environmental impact is the mulching argument; the dozer argument is a clean building site.

Soil and Water: Where a Mulcher Floats and a Dozer Sinks

Flatwoods sand sits on hardpan 12 to 30 inches down, and from June to September the water table is at the surface. A machine on wide tracks with a mulching head floats on that. A dozer sinks, ruts to the hardpan and leaves a soil disturbance the SJRWMD can see from the road. A dozer never floats. I have the tow strap receipts to prove it. Trail Ridge sugar sand at Keystone Heights drains in an hour and takes either machine; the dozer will strip the land bare and the sand blows, so erosion risks run higher there than anywhere. Hammock loam on the St. Johns holds topsoil worth keeping; mulching keeps it, bulldozing piles it with the roots. Creek-bottom muck takes neither machine until November. Mulching prevents erosion by leaving roots and cover; bulldozing leaves a slope of bare fill that needs seed before the first storm. Soil health after mulching is better in year one.

Live Oaks and Camphor: Why Neither Mulching nor Bulldozing Works Alone

A protected live oak stops both machines at the drip line. City of Jacksonville Chapter 656 protects at 11.5 inches DBH on a residential lot; St. Johns, Clay and Nassau at 8. Case 2: a half-acre Nocatee-area lot, 3 live oaks kept under the St. Johns County code, one day, $2,700. Inside the drip line the crew works by hand: fell the small pine with a saw, rake, no tracks over the roots. Camphor and Chinese privet are invasive plants that resprout from any stump, mulched or pushed. The only method that kills them is cut-stump treatment within minutes of the cut, a saw and a sprayer, not a machine. Buckthorn and multiflora rose are a Midwest problem; ours is palmetto, briar and camphor. Let a lot overgrow with it for ten years and the overgrowth is woody growth 40 feet tall and seeding the neighbors. Either machine takes it down; only the treatment keeps it down.

When You Need a Dozer Anyway to Clear a Building Site

Four jobs a mulching head cannot do. Stumps out of the pad footprint: a slab over a rotting pine stump settles, so the root rake pulls tree stumps at $165 an hour, or the grinder takes them at $4.25 an inch. Pads: rough grade and 12 inches of compacted fill above crown of road, quoted per pad, $3,900 on case 4 in Yulee. Fill and compaction: the dozer spreads it in 8 to 10 inch lifts and the roller makes three passes. Driveways, culverts and firebreaks on timber tracts. Site prep is dozer work; land cleared by mulching is the step before it. Pipeline and utility easements get the dozer too, because the ground has to be bare and graded. As a Seabee I built pads on worse ground than any lot in Clay County, and the machine was never a mulching head. A grind on the stumps, a dozer on the pad, a mulching head on the rest.

Which Method for Your Jacksonville Lot

Property owners who need a mulcher to clear the lot and a dozer for the pad get both on one quote. Traditional land clearing with a Deere dozer alone, the way my Navy years went, is the right call on maybe one lot in five. A tractor with a brush hog mower is for the field you already cleared; rotary cutters leave the palmetto root mat. Land clearing methods are tools. The lot picks.

Forestry Mulching vs. Bulldozing: Questions From Property Owners