Question
How do you get rid of gorse in NZ?
There are three practical options for gorse in New Zealand: spray it, cut it by hand, or mulch it mechanically. Spraying kills it but leaves it standing. Hand clearing is slow and unpleasant on spiny growth. Mulching removes it to ground level in one pass. None of them touch the seed bank in the soil, so some follow-up is always part of the plan.
Start by being realistic about the seed bank. Gorse seed stays viable in soil for decades, and any established stand has been depositing it the whole time. No available method removes it. Anyone promising permanent eradication in one visit is not describing gorse.
Spraying is the cheapest per hectare and is a legitimate tool for broad-scale suppression on country you do not need to physically use. The limitation is that a sprayed stand stays standing, dead, dry, still spiny and more flammable than it was alive. On a steep face it can stand for years.
Hand clearing works on small areas and gives precise control, but gorse is one of the worst species to do it on. It is spiny, dense, and usually on ground steep enough that swinging a scrub bar is genuinely hazardous.
Mechanical mulching takes the whole plant to ground level in one pass and processes it into a layer that stays on site. GRazer handle mature gorse at 200mm to 300mm on slopes up to 55 degrees, which covers the faces where gorse does best. No chemicals, no burning, nothing carted away.
Whichever route you take, plan the follow-up. Grazing regrowth is the cheapest maintenance there is, and it only becomes possible once access is restored.
Still want to talk to someone?
Call Dan on 027 234 5962, or send the address and a few photos and we will come back to you.
Ready to reclaim your land?
Mulching and land clearing specialists for tough terrain across the North Island.