A house made from roadside grass fibres, sustainable energy generated from roadside grass, more sustainable and cheaper roadside management. Science fiction or reality? Within the Interreg 2Seas GRASSIFICATION project, research institutes, land managers and industrial partners examined the possibilities to create economically viable business cases for these and other applications starting from roadside clippings.

Over 4 years, 14 partners from Belgium, the Netherlands and the UK investigated potential value-chains (from roadside management to novel products) to maximally valorise novel end-products. The results here presented aim to initiate a new bio-based circular economy based upon roadside grass clippings.

​About the project  

The overall objective of the Grassification project was to apply a multi-dimensional approach to the valorisation of roadside grass clippings to optimize it into a viable value chain for the biobased and circular economy. The project aimed to optimize logistics and technical aspects of the grass clippings supply chain and processing, demonstrate its market potential as well as formulate policy and legal recommendations to create a more supportive framework for the recycling of this renewable resource. These actions aim to increase the volume of usable material, lower costs, and generate a higher added value for these so-called ‘waste’ streams, which eventually will result in a higher market value for the industry. In this way, the use of roadside grass clippings as a renewable resource for the production of biobased products and hence the circular economy will become more attractive.

Commercial outcomes

For achieving these goals, the Grassification project had, as main outputs: 

  • A novel mowing head aiming at improving the quality and reducing the sand content of the grass clippings
  • Technology tested for decentralized biogas production from the co-digestion of grass clippings with other feedstocks
  • Technology tested for bulk processing of grass into biogas
  • Products made out of grass fibers, such as a picnic set, stepping stones and construction materials
  • Report on possible applications of the liquid fraction of grass
  • Model developed for joint procurement and performance contracting
  • Techno-economic assessment and life cycle assessment of the most promising value-chains (biogas and biocomposites)
  • Supply chain optimization model
  • Policy roadmap

The stakeholders benefitting from these outputs are: road and land managers, SMEs and large entreprises, research institutes and centers, policy makers, and other stakeholders like e.g. the building sector for applications of bio-composite load bearing structures.

If you wish to know more about this project and its outputs, take contact with Prof Erik Meers at

Discover the deliverables 

Grassification is co-funded by the province of East Flanders and the province of West Flanders




Grassification – Assessment Report of using the liquid fraction of grass as fertilizer
Grassification – Policy Landscape analysis for the valorization of roadside grass clippings
Grassification – Techno-economic assessment of value chains from roadside grass clippings
Grassification – Performance contracting for roadside maintenance
Grassification – Life Cycle Assessment of roadside grass verges in Flanders
Grassification project – Anaerobic co-digestion of grass clippings. Decentralized biogas production
Grassification – D1.2.1 Development of a general outline for a joint public procurement process
Grassification – Use of biocomposites of biopolymers and roadside clippings for prototype products (e.g. landscape infrastructure)
Grassification – D 1.4.1. Co-digestion of roadside grass with VeDoWS manure and pig slurry
Grassification – Brochure
Grassification – Assessment of the potential of protein extraction and protein production (insects and microalgae) from the liquid fraction
Grassification – Support development new type mowing head aimed at minimising dirt content via a co-creation strategy
Grassification – D2.4.1 Production fibre pellets from roadside clippings as half-finished product for biocomposite production
Grassification – D1.1.2 Report: Testing & comparison of performance new type of mowing head against existing mowing heads

Check the Grassification videos!

Workshop in Maldegem

Webinar on Anaerobic Co-digestion of Roadside Grass Clippings

Webinar Platform Oogstbare Landschappen – 11 december 2020

Grassification: Anaërobe vergisting van bermgras

Webinar on Developing novel end-products from grass fibres

Webinar on Bermen maaien: grondstof oogsten

Assessing the potential use of the liquid fraction of roadside grass

Midi de la biomasse – etat des lieux sur les pistes de valorisation des herbes de fauche

Circular Economy: a multi-dimensional approach to valorise roadside grass clippings

Meet the Grassification consortium