Where Willow Takes Root: Rewilding Our Rivers
An Auria Journal Story.
October 15, 2026
Across the UK, willow is returning to riverbanks as part of a quieter form of restoration, holding soil, cooling water and creating living corridors for wildlife.
Stand beside an old river and there is a good chance a willow will be close.
Its roots reach into damp soil. Long branches follow the movement of the water. In early spring, catkins provide pollen and nectar when relatively little else is flowering. Later, leaves shade the margins and insects gather among them.
It is an association formed over thousands of years.
Across Britain, conservationists, farmers, river trusts and volunteers are strengthening that relationship again. Willow is being planted beside streams, woven into eroding banks and carefully laid into channels as part of a growing movement to restore natural processes to rivers.
The Rivers Trust describes its ambition as creating “wild, healthy, natural rivers, valued by all”. During 2025 and 2026, its network planted 592,000 trees, created or restored 513 hectares of wetland and delivered more than 9,600 natural flood management measures across the UK and Ireland. Among those trees, willow has a particular place.
A Tree Made for Water
Willow feels at home beside a river because many species are adapted to precisely these conditions. Crack willow is commonly found beside rivers, lakes and watercourses and has long been planted to stabilise banks. White and grey willows also favour damp ground, and their foliage, catkins and branches provide food and shelter for moths, bees, birds and other wildlife.
Below ground, their roots begin another piece of work.
A vegetated riverbank binds soil more effectively, helping to reduce erosion. Trees can intercept surface water and encourage infiltration into the ground. Along agricultural land, wooded river margins can also act as buffers, filtering some sediment and pollutants before they reach the water.
Above the river, leaves create dappled shade.
Guidance developed through the Keeping Rivers Cool initiative found summer mean and maximum water temperatures averaging 2°C to 3°C lower in shaded stretches than open ones.
That cooling can matter deeply to species such as Atlantic salmon and brown trout as our summers become warmer.
“The answer to restoring and regenerating nature can lie within nature itself,” says The Rivers Trust.
Willow makes that idea visible.
Building a Riverbank That Lives
Along the Thames at Kew this autumn, people have been learning a river-restoration technique practised for centuries.
Willow spiling involves driving stakes into an eroding bank and weaving freshly cut willow rods between them. The finished structure resembles a low woven wall. Because the willow is alive, it begins to root. The structure strengthens as it grows, trapping sediment, holding the bank together and developing habitat among its stems and roots.
During October 2026, the Thames Landscape Strategy has been running hands-on workshops along Kew Towpath, supported by the Thames21 Empower Rivers Fund. Volunteers require no previous experience and work together to build living willow structures along vulnerable sections of the Thames.
The same technique is being used elsewhere.
On the River Vyrnwy, Severn Rivers Trust volunteers have installed living willow protection with Mathraval Farm. In Cumberland, willow spiling was used this year to reinforce an erosion-damaged riverbank at Bell Lonning. Mersey Rivers Trust includes willow spiling among the practical conservation work undertaken by its volunteers.
These are modest interventions measured in metres rather than miles. As roots establish and vegetation develops around them, the bank begins to hold itself.
On Oxfordshire's River Evenlode, restoration takes another form. In November 2025, Cotswolds Rivers Trust and the Blenheim Estate restored just over a kilometre of an overly straightened river. Bankside willow trees were hinged partly into the channel alongside woody flow deflectors and newly created berms. The interventions produce variations in current, expose cleaner gravels and encourage high flows to reconnect with the floodplain. Early results have led to plans for another 800 metres of work. This is river restoration through movement. A fallen or hinged tree creates areas of faster and slower water. Sediment settles in some places and gravel is scoured clean in others. Fish gain refuge. Invertebrates find new surfaces. The channel develops variation. The tree remains part of the river.
Auria tells this story because restoring the living edges of our rivers shows how practical human stewardship can give natural processes the space to rebuild healthier, richer landscapes.
Putting Trees Back Beside Water
There is equally important work happening slightly further from the channel.
In County Durham, Wear Rivers Trust staff and volunteers planted a quarter of a hectare of new riverside woodland along Coalford Beck in 2025. Young broadleaf trees were joined by locally collected willow cuttings. The new buffer separates grazing land from the river, helps stabilise soil and creates a corridor through which wildlife can move.
At Williekeld Sike in Cumbria, willow formed part of a native mix selected for flood-prone land through the Woodlands for Water programme. Across the whole initiative, almost one million trees were established over 288 hectares at 73 new woodland sites before the programme concluded in March 2025. Its legacy continues through the wider ambition to reconnect rivers with wooded corridors.
Willow belongs within these mixed landscapes alongside alder, birch, oak, black poplar, hawthorn and the natural vegetation already present.
The detail matters. A healthy river needs areas of sunlight as well as shade, wet grassland alongside woodland, open banks beside densely vegetated reaches. Some valuable habitats are best left unplanted. The Wildlife Trusts advises seeking local ecological guidance before planting and applying the principle of the right tree in the right place.
Helping to rewild a river does not require owning one.
What We Can Do
More than 60 local organisations form The Rivers Trust network, many offering volunteer days involving tree planting, riverbank restoration, invasive species control, litter removal and citizen science. The Big River Watch has already attracted more than 27,000 participants, submitting almost 15,000 surveys since it began in 2023.
For people with access to riverside land, the starting point is conversation with the local Rivers Trust, wildlife organisation or relevant authority. Planting beside a main river can require Environment Agency agreement, and appropriate species, spacing and habitat need to be considered before work begins.
For everyone else, volunteering offers something unusually tangible.
You can spend a morning pushing willow stakes into wet ground. Weave living stems through them. Plant a tree whose shade may eventually fall across water decades from now. Return later and watch the bank change.
Bethany, a Tyne Rivers Trust volunteer, describes the appeal simply: “It’s a great way to spend time outdoors and meet other people with a common interest in the environment.”
Planting willow will not restore every damaged river on its own. River recovery involves water quality, land management, floodplains, wetlands, fish passage and the space for natural processes to develop. Willow has a useful role within that larger work. A cutting pushed into suitable wet ground can become roots, branches, shade and habitat. A woven riverbank can continue growing long after the volunteers who built it have gone home. A line of trees can eventually become a corridor connecting places that wildlife once struggled to cross. Across Britain, these changes are already happening beside familiar rivers and small streams. Sometimes rewilding begins with something as simple as allowing a tree and a river to grow together again.
From the Auria Foundation
Auria tells this story because restoring the living edges of our rivers shows how practical human stewardship can give natural processes the space to rebuild healthier, richer landscapes.
Through our membership model, 50% of every subscription supports carefully selected, high-impact initiatives working to restore ecological integrity, resilience and long-term balance.
We believe meaningful restoration requires awareness, action and patience.
If this piece has taken your interest you, perhaps you are already part of that wider conversation.
Join us. Help support what endures and returns.
