Japanese Knotweed Removal
Invasive Plant Removal
Japanese knotweed was introduced from Japan in 1825 as an ornamental plant. The plant is not unattractive but its rapid annual growth and relentless spread, allows it to easily overwhelm other garden plants. Where established as a wayside weed, native plants are also aggressively over-run.
Although it does not produce seeds, it can sprout from very small sections of rhizomes and, under the provisions made within the Wildlife and Countryside Act 1981, it is an offence to cause Japanese knotweed to grow in the wild. Much of its spread is probably via topsoil movement or construction traffic.
Bamboo is usually a desirable addition for green fingered gardeners. But when left unchecked the fast-growing shoot can easily take over and become an invasive and problematic weed.
There are more than 1,400 species. They are fast-growing perennials, with heights ranging from 15cm in the smaller species to 40m in larger species. The worst culprits for getting out of hand are the types that spread by rhizomes (underground stems). The problem is most likely to occur in mid-summer when there are optimal bamboo developing conditions.