Finalists announced: UK and Ireland Green Gown Awards

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Coventry University

Design and evaluation of peat-free blocking media

Finalist, Research with Impact - Institution Finalist, Research with Impact

About

Peat has been a mainstay in horticulture due to its exceptional properties but its extraction exacerbates climate change, destroys habitats and increases flood risk. Currently available peat-free growing media are not suitable for producing ‘pressed blocks’ that are widely used for the production of transplanted seedlings used in field
vegetable and salad production. A collaborative project was conducted by Coventry University’s (CU) Centre for Agroecology, Water and Resilience (CAWR) with industry partners Riverford Organic Farmers and Delfland Nurseries. A wide variety of materials (including composts, digestates, wood fibres, clays and gums) were characterised and blended to produce media tested under commercial conditions. This showed that
production of peat-free alternatives to peat-based blocking media is feasible, using ingredients that are more sustainable than peat. There has also been extensive interest in the findings and the team is currently working with a growing media producer to commercialise a product.

 

Top three learnings 

1. Close work with industrial/farming collaborators has enabled us to maximise relevance and impact.

2. We have developed new techniques to assess the quality and performance of peat-free growing
media.

3. Links with the organic growing community have been important to fully understand the research
requirements.

 

SDGs

12- Responsible consumption and production 

 

What it means to win

Winning a Green Gown Award would help us build on the momentum and enthusiasm to achieve our environmental targets by strengthening the positive engagement we have with students, staff and stakeholders in the wider community. It would also recognise the hard work that has already been done and facilitate the impact of new research and innovation.

 

Coventry University Group logo

 

2026
Research with Impact - Institution
Finalist, UK and Ireland

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