# Invasive plant species management in Europe > Live situation record from CLSTR: https://clstr.news/situations/invasive-plant-species-management-in-europe > Updated: 2026-08-31T06:33:24.000Z. Sources: 4. Developments: 2. European nations are implementing various regulatory and logistical measures to manage the spread of invasive plant species. In Poland, new regulations target the Oriental bittersweet, requiring property owners to remove the plant by August 2027 to avoid significant fines. While the rugosa rose remains available for purchase in Poland, it is being monitored by environmental institutions due to its presence near the Baltic Sea. In Sweden, the rugosa rose has been blacklisted, and authorities are actively working to eradicate species such as lupine, giant hogweed, and Japanese knotweed. Managing these species presents logistical difficulties, such as the need for heat treatments that disrupt railway traffic and strict mowing windows for lupines. These management efforts have sparked scientific debate in Sweden. Some ecologists argue that the classification of invasive species relies on “arbitrary historical benchmarks” rather than actual ecological impact, suggesting that the focus on a plant's origin may be biologically unrealistic. ## Timeline ### 2026-08-31: Sweden manages invasive plant spread amid scientific debate Sweden faces challenges managing invasive plants like lupine and Japanese knotweed along infrastructure, amid scientific debate over the biological validity of using historical dates to define invasive species. 2 sources. https://clstr.news/cluster/sweden-manages-invasive-plant-spread-amid-scientific-debate ### 2026-08-23: Invasive plant species face new restrictions in Poland and Sweden Invasive plant species like Oriental bittersweet and rugosa rose face increasing restrictions in Poland and Sweden to prevent them from displacing native flora and damaging ecosystems. 2 sources. https://clstr.news/cluster/invasive-plant-species-face-new-restrictions-in-poland-and-sweden --- Cite as: Invasive plant species management in Europe. CLSTR, https://clstr.news/situations/invasive-plant-species-management-in-europe