A couple from central Europe have spent nearly 40 years demonstrating what Ireland’s peat bog rewilding looks like in practice, planting over 3,000 native trees and restoring water flow to a degraded lake bog system in County Mayo.
Ireland’s peat bog rewilding is proving that small-scale restoration, driven by care and observation rather than budgets and blueprints, can bring degraded land back to life while shifting the way people think about their relationship with nature.
In Castlebar, County Mayo, Bettina and Georg Peterseil have spent nearly four decades doing exactly that. The pair, originally city dwellers from Austria and Germany, arrived in Ireland guided largely by intuition and found a place where they could heal both the soul and the land. Without scientific training or outside funding, they restored water flow to a nearby lake, tended the soil, and planted more than 3,000 native plants and trees across a lake bog system nestled between Mount Nephin and the sacred mountain of Croagh Patrick.
What they inherited was not a pristine landscape. The bog had been heavily used for several hundred years to grow potatoes and as a source of peat, leaving it dried out and filled with peat hags, a drained series of ridges that left the land lumpy and nearly barren. Peat hags form when waterlogged bogland is drained or cut for fuel, leaving behind sunken channels that can take years to recover. Ireland’s peat bog rewilding begins precisely by addressing this damage, restoring the water table, and giving the land a chance to recover.
The Peterseils stopped drainage and turf-cutting, built compost to restore the soil, and watched as earthworms arrived on their own to turn that compost into a rich new growing medium. They came to believe the relationship between person and place runs both ways. They feel the bog has cared for them just as they have cared for the land. As Georg put it, they could see a connection between the healing of the land and the healing of their minds and their relationship to the earth.
A key driver of recovery is sphagnum moss, the foundational plant of any healthy bog. Sphagnum acts like a living sponge, capable of absorbing up to 20 times its dry weight in water. It creates an acidic environment that slows decomposition, which is how peat forms over centuries. As Ireland’s peat bog rewilding progressed on the Peterseils’ land, sphagnum returned naturally alongside native oak, holly, willow, and ash. Where only 40 years ago there were no trees or shrubs, the bog is now a protected, living landscape of mosses and heather where birds can be heard throughout.
For those seeking to drive meaningful change, decades have been spent speaking to the head when the heart also needed to be addressed. Irish Wildlife Trust Ireland’s peat bog recovery efforts are beginning to bridge that gap. Projects rooted in community and long-term commitment are producing results that policy alone has struggled to achieve.
The stakes go well beyond habitat. Peat covers over 20% of Ireland’s landscape and stores over 1,000 million tonnes of carbon, with a 15-centimeter-thick layer containing more carbon per hectare than a tropical forest. When bogs are drained, that carbon is released. Ireland’s peat bog rewilding is therefore also a climate action strategy, one that works by restoring rather than building from scratch.
Plantation forests of fast-growing conifers in neighboring fields drain boglands and cause further soil damage when timber is harvested. This tension between economic land use and ecological recovery plays out across rural Ireland. Yet momentum is building. The Lough Boora Discovery Park in County Offaly, a raised bog stripped for turf for decades, has been transformed into wetlands and forests now rich with lapwing, cuckoo, hare, and wintering waterfowl. Ireland has also designated around 27,000 acres of bog, mountain, and forest land in County Mayo as the country’s first official wilderness area, Wild Nephin.
The EU’s Nature Restoration Law, adopted in 2024, now sets binding targets for member states to restore degraded wetlands and peatlands. What the Peterseils modeled quietly in Castlebar is now aligned with legal obligations across the continent. Ireland’s peat bog rewilding efforts, once driven by a single couple’s quiet conviction, are now reflected in policy frameworks across Europe.
Ireland’s peat bog rewilding does not require grand gestures. It requires attention, patience, and a willingness to let the land lead. What matters is not the label but the outcome: healthier land, more biodiversity, and climate resilience built into the landscape. The bogs of County Mayo, once dried and dismissed, are showing that healing land and healing perspective often begin in the same place.
