Our local woodlands, cloughs, and rivers are part of what makes living in Calderdale so special. But that beauty is under pressure.
Invasive Non-Native Species (INNS) are plants and animals that have been introduced to the UK by human activity, often by accident. Without their natural competitors, they can quickly take over, suffocating our native bluebells and damaging the riverbanks that protect us from flooding. Managing these species isn’t just a task for experts; it’s a shared responsibility that costs the UK economy over £4 billion every year, according to a landmark CABI-led study funded by Defra.
This Invasive Non-Native Species (INNS) Week and various organisations in Calderdale are looking at how we can work together to restore our valley.
Read a special INNS Week blog post
This page introduces what invasive non‑native species are, why they matter in Calderdale, and how you can get involved, with information on local actions, events, and ways to help reduce their impact. Visit blog post
Volunteer Activities
Help Rooting 4 Change restore biodiversity to Rawtonstall Wood by tackling invasive Himalayan Balsam on Wednesdays and Thursdays. It’s easy, tool-free work in a stunning setting, perfect for a few hours or a full day of rewarding community action! Balsam bashing at Rawtonstall Wood.
The National Trust at Hardcastle Craggs are looking for a small group of volunteers to join their Grassland Management team on Fridays between May – September. Grassland management volunteer.
The Calder Conservation Group CIC regularly carry out INNS removal work. Follow their Facebook page for the latest information.
