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pH 7.5 - ALKALINE |
Common Name: Japanese Knotweed
Latin Name: Fallopia Japonica
Type: Perennial
Location: Oldham, Manchester.
Ultimate height: Up to 2m
Located Fallopia Japonica height: 400mm
Leaf Shape: Large triangular deltoid
shape leaves distributed on bamboo like red cane stems
Bark: No bark, stems are bamboo like and
vary in colour from red, brown to green.
Fruit/Flowers: Fruit has a papery
texture. Flowers are of a whitish colour, pendulous spikes grow from base
of the leaf between August and October.
Distribution: Japanese Knotweed is rare
throughout the UK, however it does colonise on wayside areas.
I located this specie on a
brownfield site, specifically within a mound of rubble. It was of a young age
and had managed to grow through the stone, brick and soil
heap. Fallopian Japonica has a reputation of being able to grow in
almost any conditions, especially wastelands and brownfield sites like the one
displayed above. It is very difficult to permanently remove the weed, as
you have to use chemical killer to penetrate its root system. Chopping of its
stem above ground cannot be regarded as a temporary measure, as it is only a
means of prolonging its growth.
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