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Overview
Invasive non Native Species (INNS) is a broad term to describe plants and animals that have been introduced into the national ecosystem from foreign sources. these INNS cause an imbalance leading to overgrowth, pollinator decline, and health and safety risks which is why removing them and planting more suitable, native species, can allow areas to flourish and regain their biodiversity. This supports our Nature Recovery Action Plan and our Green and Blue Infrastructure Strategy.
What is the plan:
In order to remove these Invasive Species, starting in March 2025 and running for 5 years, INNS eradication will take place in certain parks sites across the borough. We have commissioned a specialist contractor to treat three of the most problematic plants; Japanese Knotweed, Giant Hogweed and Floating Pennywort.
The contractor will also be advising the council on how to remove Himalayan Balsam, but will not be explicitly treating it. Following on from these works we hope to plant native species in order to help rebalance the ecosystem and prevent regrowth.
About these invasive species:
Japanese Knotweed is a fast spreading, fast growing bindweed, imported from Japan that damages foundation, smothers native species and out-competes other plant life in the area.
Floating Pennywort is a weed that lives on top of water courses, hence the name floating. It stops oxygen and light entering the water system and can cause multiple issues with water systems.
Himalayan Balsam is an incredibly fast spreading weed with pods that explode and disperse seeds, they are rampant along rivers and have very distinctive purple flowers. These flowers are good for pollinators, but any single species plant is bad for the environment as a whole.
Giant Hogweed is a brutal plant that is very dangerous to human health, this grows large stems with barbed leaves that can cause serious burns that react to sunlight for many years.
Photo from Brazil Mill Woods, to be treated as part of the scheme.
Overview
Invasive non Native Species (INNS) is a broad term to describe plants and animals that have been introduced into the national ecosystem from foreign sources. these INNS cause an imbalance leading to overgrowth, pollinator decline, and health and safety risks which is why removing them and planting more suitable, native species, can allow areas to flourish and regain their biodiversity. This supports our Nature Recovery Action Plan and our Green and Blue Infrastructure Strategy.
What is the plan:
In order to remove these Invasive Species, starting in March 2025 and running for 5 years, INNS eradication will take place in certain parks sites across the borough. We have commissioned a specialist contractor to treat three of the most problematic plants; Japanese Knotweed, Giant Hogweed and Floating Pennywort.
The contractor will also be advising the council on how to remove Himalayan Balsam, but will not be explicitly treating it. Following on from these works we hope to plant native species in order to help rebalance the ecosystem and prevent regrowth.
About these invasive species:
Japanese Knotweed is a fast spreading, fast growing bindweed, imported from Japan that damages foundation, smothers native species and out-competes other plant life in the area.
Floating Pennywort is a weed that lives on top of water courses, hence the name floating. It stops oxygen and light entering the water system and can cause multiple issues with water systems.
Himalayan Balsam is an incredibly fast spreading weed with pods that explode and disperse seeds, they are rampant along rivers and have very distinctive purple flowers. These flowers are good for pollinators, but any single species plant is bad for the environment as a whole.
Giant Hogweed is a brutal plant that is very dangerous to human health, this grows large stems with barbed leaves that can cause serious burns that react to sunlight for many years.
Photo from Brazil Mill Woods, to be treated as part of the scheme.
