The invasive plant is so widespread that councils and authorities have urged drivers to pull over and destroy the plants when they see them.
However, these unheeded warnings have caused the plant to invade UK gardens.
The pink plant was previously only seen on canals and waterways – but it is steadily making its way into gardens.
The prolific plants produce 800 seeds a year according to the Royal Horticultural Society, which they shoot out, helping them to carry further afield.
The public is being urged to inform the council immediately if they see the plant.
Annual events to cull the plant have been arranged in previous years, in a desperate bid to keep numbers low.
Ecologist Louise Wooley organises annual ‘balsam bashing’ events in Devon.
She told the Telegraph: “Every year Himalayan balsam grows exponentially and it’s really reached a point where people are starting to notice it everywhere and it will reach peak catastrophic levels if we don’t do something about it.
“If you see it you should stop and try and get it out yourself.”
A study by Durham University cited Himalayan balsam as a major problem for the British Isles.
The plant with a pink flower was originally introduced to Britain purposefully.
However, the plant has flourished and caused concern amongst environmental activists.
From one pest to another, Express.co.uk revealed how to get rid of mice without using traps or poisons.
The house mouse ranges between 60-90mm – the tail an additional 100mm – weighs less than 25g, and is light brown and grey in colour.
Mouse nests are often built inside houses, often in places such as roof spaces, under floors or in wall cavities, especially during winter.
However, there’s a simple way to show rodents the door.
On its website, the British Pest Control Association says: “Proofing all means of entry as much possible will help to prevent entry.
“Block holes with wire wool embedded in quick-setting cement, and fit met metal strips to doors to prevent mice…