Artisan promotes sustainable use of common reed in Kouvola, Finland
Jävriruoko, or common reed, is often seen as a bane by lakeside property owners, as it can overrun swimming areas and hinder boat access. However, Tanja Kukkola, an artisan, horticulturist, and engineer, views this plant in a different light, emphasizing that it is underutilized in Finland. She points out that countries like the Netherlands have hundreds of companies specializing in reed roofing, while other European nations also have a long history of using the material.
Kukkola discovered common reed 15 years ago while searching for sustainable natural materials for construction, design, and crafts, noting its superior durability compared to willow. Initially, she created decorative items, later branching into lampshades and various garden structures.
Harvesting reed in winter is not only feasible but also an ecological action. With an estimated 100,000 hectares of reed growing nationwide, it can be cut both in summer and winter for different uses. Summer-harvested reed can enhance soil with nitrogen and phosphorus, while winter-harvested dry stalks are ideal for construction, as they won’t decay like those submerged in water.
Kukkola also highlights that common reed plays a vital role in water purification by absorbing pollutants during the summer. The plant supports biodiversity by providing shelter for various birds and wildlife. To control its growth, Kukkola advises cutting it over three consecutive summers to deplete its nutrients.
In her village project in Kouvola, Kukkola and her friends have constructed structures like a traditional dwelling using reed, demonstrating its potential for sustainable building. Reed thatched roofs can last up to 70 years, showcasing their durability. Kukkola encourages broader use of common reed in gardens and landscaping, promoting its benefits for both aesthetics and ecology.