Polygonum japonicum
Japanese Knotweed
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Japanese Knotweed (Polygonum japonicum) - Description
Fallopia japonica, commonly known as Japanese knotweed, is a large, herbaceous perennial plant of the family Polygonaceae, native to Eastern Asia in Japan, China and Korea. In North America and Europe the species is very successful and has been classified as an invasive species in several countries. Japanese knotweed has hollow stems with distinct raised nodes that give it the appearance of bamboo, though it is not closely related.
Japanese Knotweed (Polygonum japonicum) - Blooming
Small white or pink flowers in open sprays.
Japanese Knotweed (Polygonum japonicum) - Growth
Evergreen or deciduous perennials and vines. Sturdy, sun-loving plants with jointed stems.
Japanese Knotweed (Polygonum japonicum) - Planting
Plant seeds in pots in spring, but provide frost protection. Divide in spring or fall.
Japanese Knotweed (Polygonum japonicum) - Interesting facts
Polygonum is Greek for "many kneed", refered to its jointed stems.
Japanese Knotweed (Polygonum japonicum) - Soil and irrigation
Regular water, depending on the species.
