What S Japanese Knotweed
This plant is a fast growing weed with the potential to spread as much as four inches every day.
What s japanese knotweed. In winter the plant dies back to ground level but by early summer the bamboo like stems emerge from rhizomes deep underground to shoot to over 2 1m 7ft suppressing all other plant growth. Growing to a depth of 3m with a radius of 7m it can cause thousands of pounds worth of damage to buildings and sites. And then to north america in the 19th century as a landscaping ornamental. It is the plant s way of seeking the sunlight and water that you have been depriving it of.
Japanese knotweed is a member of the buckwheat family. Reynoutria japonica synonyms fallopia japonica and polygonum cuspidatum is a large species of herbaceous perennial plant of the knotweed and buckwheat family polygonaceae. Knotweed is used for swelling inflammation of the main airways in the lung cough sore throat a. It prefers sunny moist areas including riverbanks roadsides lawns and gardens.
It is now the most invasive plant species in this country and across the uk. Japanese knotweed is an incredibly resilient plant usually found on wasteland sites but sometimes creeping its way into gardens. Identifying japanese knotweed. However from an ecological perspective these plant traits are.
Overview information knotweed is an herb. Japanese knotweed s ease of spread and rapid growth from a deep rhizome root system was initially prized for planting schemes. Japanese knotweed fallopia japonica is an aggressive weed that can grow up to 10cm a day. Japanese knotweed costs the uk economy an estimated 166 million per year for treatment and in property devaluations.
Japanese knotweed is known by many names including polygonum cuspidatum fallopia japonica and reynoutria japonica. The plant arrived from japan to the u k. Even if all goes as planned japanese knotweed may send up shoots from its rhizome system beyond the perimeter of the area that you have covered with a tarp or old carpeting. It is now the most invasive plant species in this country and across the uk.
The whole flowering plant is used to make medicine. Japanese knotweed fallopia japonica is a weed that spreads rapidly. It is commonly known as asian knotweed or japanese knotweed it is native to east asia in japan china and korea in north america and europe the species has successfully established itself in numerous habitats and is.