Overcoming Japanese knotweed: sustainable revitalization of the Recor site with DuPont™ Plantex® Platinium

The Recor site, situated along the E313 in Hasselt, Belgium, is an exemplary model of sustainable urban redevelopment. Once a furniture and bedding factory, it was abandoned before briefly serving as temporary housing for Ukrainian refugees. During this time, the presence of invasive Japanese knotweed rendered the land unusable.

This case study explores the challenges encountered during the redevelopment process and highlights the role of DuPont™ Plantex® Platinium in transforming the site into a vibrant space for small and medium-sized enterprises, while promoting sustainability and enhancing biodiversity.

The primary challenge in the reconversion of the Recor site was effectively eliminating Japanese knotweed, which threatened both the site's usability and the surrounding ecosystem. This invasive species, characterized by its aggressive growth and extensive root systems, created a significant barrier to redevelopment efforts, particularly after years of unchecked proliferation. The objective was to develop a welcoming landscape that promoted native plants and community engagement.

To address this challenge, Futurn as main stakeholder, Mathieu Gijbels as contractor, the city of Hasselt and Pius Floris Boomverzorging Belgium executing the project, sought a sustainable and effective solution against Japanese Knotweed. They chose DuPont, whose team brought years of expertise in invasive species management, gained through many projects utilizing Plantex® Platinium. This high-performance geotextile solution not only effectively eradicates invasive species but also supports the growth of native plants, thereby enhancing the overall ecosystem.

A systematic approach was implemented throughout the project to ensure efficient management and revitalization of the site.

The first step involved the complete eradication of Japanese knotweed, which included removing the invasive plant and scraping away the upper soil layer, a necessary measure for healthy redevelopment. Following the successful removal of knotweed, the site was then flattened, and a wadi was created to enhance biodiversity and provide cooling effects during warmer months.

Approximately 2,000 m² of the area were then covered with Plantex® Platinium. Individual strips of this innovative product were joined using thermal welding, while a special glue secured the material against concrete edges and building foundations, ensuring strong adhesion and preventing regrowth of invasive species.

To prepare for the reestablishment of native plants, a fresh layer of soil was added to protect the Plantex® and facilitate the seeding of indigenous plants and wildflowers, allowing nature to reclaim the area. This project was successfully achieved in less than 3 weeks, thanks to a close collaboration between the DuPont Plantex® team, the Hasselt city council and Mr. Ben Buyvoets and his team at Pius Floris Boomverzorging Belgium.

The revitalization of the Recor site is set to provide substantial benefits to both the local economy and the environment. Through the strategic use of Plantex® Platinium, ecological restoration was successfully achieved, promoting a viable habitat for native plants. The enhancement of the wadi and overall site design contributes to biodiversity and supports local wildlife while aiding in temperature regulation during the summer months. The new layout is expected to attract small and medium-sized enterprises, fostering economic growth and strengthening community interactions.

The Recor site redevelopment in Hasselt illustrates how sustainability and innovation intersect in urban revitalization projects. Plantex® Platinium played a crucial role in overcoming ecological challenges and supporting a prosperous ecosystem, thus serving as a model for future sustainable initiatives.

For professional assistance in combating Japanese knotweed using our Plantex solutions, please contact our Technical Team at https://www.dupont.co.uk/plantex

For more information on the application of the Plantex Platinium by Pius Floris Boomverzorging Belgium on the Recor site, contact Pius Floris Boomverzorging Belgium: http://www.piusfloris.be