The result looks final on the afternoon it is finished
Canadian landowners clear regrowth in late summer, when the ground is dry enough to carry a tractor and the season is long enough to finish. A brush mulcher turns a wall of saplings into a flat brown surface in an afternoon, which is a satisfying result and an incomplete one.
Everything a brush mulcher touched was above ground level. The stems are gone and the root systems that fed them are entirely undisturbed, holding stored energy that the plant put away over several seasons for exactly this situation.
Will brush grow back after mulching, and how fast
For most species in Canada, yes, and quickly. Poplar, willow, alder, and dogwood all resprout from the root collar or send up suckers from the root system, and a cleared strip can carry knee high regrowth by the following July.
The response is often more vigorous than the original. A root system built to supply several mature stems is suddenly feeding none, so the shoots it sends up grow faster and denser than what was removed, which surprises owners the first time.
Conifers behave differently and that is worth knowing
Spruce, pine, and fir do not resprout from cut stumps, which is worth knowing before booking a brush mulcher for 70 to 110 horsepower tractors for a mixed stand. Clearing them with a brush mulcher is genuinely permanent for those individuals, and any return has to come from seed, which takes years rather than weeks and can be managed.
Clearing is a program rather than a project
Anyone using this attachment on regrowth is choosing a cycle rather than an outcome. A repeat pass at two or three year intervals gradually exhausts the root reserves. A repeat pass at two or three year intervals gradually exhausts the root reserves, and each pass is easier and faster than the one before it.
Late summer is the right window for more than one reason
A 70 inch forestry brush mulcher needs dry ground to carry the tractor without rutting, and the teeth stay out of the soil where they would otherwise be blunted on stones. Cutting late in the season also removes foliage the plant would have used to rebuild reserves before dormancy.
Clearing methods divide by what they leave underground
•Mulching: fast, roots intact, expect regrowth
•Grubbing: removes roots, disturbs the soil
•Cut and treat: slow, stops resprouting species
Where mulching is the right answer and where it is not
•Strength: acres cleared in a day, soil left in place
•Strength: no debris pile to burn or haul
•Limit: resprouting species return within a season
•Limit: stumps remain below the mulch layer
Weighed against grubbing, mulching costs permanence and returns a cleared surface with the topsoil undisturbed. A woodlot owner near North Bay treats his fence lines on a three year rotation and says each pass now takes half the time the first one did.
Land clearing is being planned in cycles rather than events
Owners increasingly budget for a repeat pass rather than expecting one afternoon to settle the matter, which has changed how attachments are compared, since a machine that will be used every second summer is judged differently from one bought for a single job.
That change in expectations is why the agricultural equipment TMG Industrial supplies is matched to tractors an owner already has rather than to the largest carrier a contractor would bring in once.
