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How a drum mulcher clears without a burn pile
After forestry mulching in San Antonio, the cedar and brush are gone, the oaks you pointed out still stand, and there’s no burn pile left. The work’s done by a drum mulcher, a spinning drum lined with teeth mounted on a compact track loader. It grinds each tree where it stands and lays the chips down as a mulch layer.
Forestry mulching is above-grade clearing, meaning the head works at the surface and doesn’t dig, so there’s soil left in place under the chips. On thin Hill Country ground, topsoil you scrape off isn’t coming back soon. The chips also sit there as ground cover, which helps hold that soil through the next hard rain.
It’s the usual way we handle cedar clearing on wooded acreage, and it does the same job for brush clearing where scrub’s taken over. Both sit under our forestry service work.
Slopes, rock and access on Hill Country land
A compact track loader spreads its weight across wide tracks, so it can work grades a wheeled machine shouldn’t try. Because it’s steadier running straight up and down a slope than across it, the operator plans passes that way and takes the steep pitches slowly.
Hill Country limestone sits close to the surface on a lot of this ground, and the teeth can’t do anything useful with it. Over ledges the head rides higher, so slope work in rocky country takes longer than the same acreage on deep soil. Access counts too, because the machine arrives on a trailer and needs a way from the road to the brush. These are what slow a job down:
- Grades steep enough that the machine has to crawl
- Limestone ledges that keep the head riding high
- Gates, cattle guards or low limbs on the way in
- Old, dense cedar with big, tight trunks to grind
Mulching during a county burn ban
A county’s commissioners court can ban outdoor burning, or put limits on it, for as long as 90 days. It acts when the Keetch-Byram index, a measure of how dry the soil is, runs high. Land clearing doesn’t get an exception, so a pile-and-burn job stops county-wide the day an order lands.
Mulching doesn’t wait on any of that, because nothing on the job gets burned. The brush goes straight from standing to chips on the ground.
The City of Bandera adds its own burn permit, and during a county burn ban it stops issuing them. Push brush into a pile on a city lot during a ban and it can sit there as long as the ban does. Nobody can promise when a ban lifts or how a burn permit request comes out, and we’d rather plan the job so it needs neither. The mulcher turns the brush into chips spread across the lot, so there’s no pile left to sit.
Signs forestry mulching fits your land
- Cedar and brush you want gone fast
- Thin soil over limestone you’d hate to lose
- A brush pile you can’t light right now
- Oaks mixed in that need to stay
- Slopes a blade would scrape bare
- More cedar than mesquite in the mix
What the ground looks like after
- Low stumps cut close to the ground
- Chips spread over the soil as ground cover
- Topsoil still in place under the chips
- Marked oaks standing with trunks unscarred
- Open ground you can walk or ride across
- No piles or ash spots left behind
Mulching around the oaks you want kept
Oaks you’re keeping get chosen before anything else, because the operator plans every pass around them. After that, a mulching job runs in this order on your tract.
- 01
Pin the tract and call
Sarah answers (210) 866‑3822 at any hour, and the estimate’s free. Drop a map pin through the estimate form and send a photo of the steepest, rockiest spot, since that’s where a mulching day slows down.
- 02
Mark the oaks you’re keeping
Put flagging tape around every oak and any cedar you’d like left. The operator keeps the head off those trunks, their low limbs and the root flare, the wide base where trunk meets roots.
- 03
Get a plan and an estimate
The estimate lists what comes out, what stays and any pitch the machine can’t safely reach. We run our own machines, so the start date isn’t waiting on a rental yard to free one up.
- 04
Mulch the cedar and brush
The drum takes the cedar and brush down to chips, tree by tree, working toward open ground. If something on site changes your mind, call, because reaching your dirt work contractor mid-job shouldn’t take three tries.
- 05
Walk the mulched ground
Once the machine’s parked, walk the tract with us. You’ll see low stumps, chips over the soil and your marked oaks right where they were, and anything that got missed gets another pass.
Did you know?
At the Kerr Wildlife Management Area, one study found cedar break lost an average of 0.82 acre-feet of rain on every acre to interception. That’s rain caught in the branches that never reached the ground.
FAQs about forestry mulching in San Antonio
Before the mulcher shows up
Walk the tract once before your estimate and note any wellheads, pipe or old fence wire hiding in the brush. Those are what a mulcher head finds the hard way, so we’d rather hear about them first.
Don’t see what you’re looking for? Ask a question here.
Will forestry mulching kill mesquite for good?
No. Mesquite resprouts after its top is ground off, so mulching alone cuts it back and it’ll start over. Getting it out for good takes grubbing, which means digging out the root crown, the woody knot at the base where new shoots start. Mulching still handles the cedar and softer brush growing around it.
Does forestry mulching leave stumps behind?
Yes, short ones. The drum works at or just above the surface, so it cuts trunks low but doesn’t chase stumps below ground. Where a stump would catch a mower blade or a tire, stump grinding takes it down below grade as a separate step.
What happens to cedar too big for the mulcher?
It’s felled with a saw first, then cut into pieces the drum can handle or loaded and hauled off. Big, old cedar takes the longest, so it’s worth pointing those trees out in your photos.
Will the wood chips smother my pasture grass?
Not where the layer’s thin. Grass comes up through a light scatter of chips, while a deep mat under old, dense cedar shades the ground for longer. Spreading the chips out across the tract, instead of leaving them heaped in one spot, gives the grass a better shot at coming back.
What happens if the mulcher hits limestone?
The operator lifts the head, because a drum isn’t made to grind rock. Teeth that strike limestone chip and dull, and the rock stays put anyway. Over ledges and shelf rock, stumps get left a little higher while the brush around them still comes down.
Do I need to be home while the mulcher works?
No, as long as the oaks you’re keeping are marked and the gate’s sorted out. It helps to walk the marked trees with the crew before work starts and the finished ground at the end. In between, the machine just needs access and room to work.
Can a mulcher work close to my house or barn?
Yes, with slower, shorter passes near anything you’d hate to see scratched. Chips and small debris fly off the drum, so people, pets and vehicles stay well back while it runs. Close to walls and fences, the operator works brush away from the structure, and Longhorn Land Clearing & Excavation is licensed and insured for work that close.
Can I build a house where the ground was mulched?
Yes, but the footprint needs more than mulching. Roots and stumps left in the ground would rot under a slab and let it settle, so a building site gets grubbed and scraped clean first. You can mulch the rest of the homesite and save the land clearing for the spot you’ll build on.