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GRazer NZ - mulching and land clearing specialists

Comparison guide

Mulching or burning: what happens to the material

Burning is the traditional answer and it is getting harder to do. Here is the practical comparison.

Cleared vegetation processed into a mulch layer on site

The short answer

Burning is cheap if you already have the material in heaps and you can get consent and a safe weather window. Mulching skips the heaping, the consent, the fire risk and the smoke complaint, and it puts the nutrient back into your soil instead of into the air. For most people the deciding factor is that mulching is one operation and burning is three.

Side by side

Cut and burn compared with Mulching
 Cut and burnMulching
Operations requiredCut, heap, then burnOne pass
Consent and restrictionsFire permit, season and weather dependentNone
RiskEscape risk, smoke complaints, liabilityContained mechanical operation
NutrientLost to the airReturned to the soil as mulch
TimingWaits for the right conditionsWhenever we can access the site
What is leftBurn scars and ash patchesAn even mulch layer

Cut and burn

Burning has been the default for a long time and it does work, but it has become steadily more constrained. You need a permit in most districts, you need the right season and the right weather, and you are carrying the risk of an escape and the near-certainty of a smoke complaint if you have neighbours. The material also has to be cut and heaped first, which is a separate operation with its own cost.

Mulching

We do not burn anything. Everything goes through the machine and stays on site as a mulch layer that breaks down into the soil. That is one operation rather than three, no permit, no waiting for conditions, no fire risk, and no smoke. On sites near dwellings, plantations or public land it removes the whole conversation.

When the other option is the right call

If the material is already cut and heaped from a previous job, and you have the permit and the conditions, burning those heaps is cheaper than bringing a machine in to deal with them. That is a genuinely reasonable call.

Want a straight answer for your site?

Send the address and a few photos. If mulching is not the right answer for what you have, we will say so.