Japanese knotweed

Japanese knotweed (Reynoutria japonica)

Japanese knotweed, also known as Fleeceflower, Elephant ears

The mention of Japanese knotweed often alarms homeowners. Due to its aggressive and invasive nature, mortgage lenders may refuse loans or require extensive chemical treatment when it's found on a property. This is because Japanese knotweed has an extensive root system that can cause significant structural damage to buildings and infrastructure, making eradication extremely difficult. This lowers the property's value and increases the financial risk for lenders.

Key Facts About Japanese knotweed

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Attributes of Japanese knotweed

Lifespan
Perennial
Plant Type
Herb
Plant Height
1 m to 2 m
Spread
90 cm to 6 m
Leaf Color
Green Blue Red
Flower Size
2.5 cm
Flower Color
White Yellow Green Cream

Scientific Classification of Japanese knotweed

Phylum
Vascular plants
Class
Dicotyledons
Order
Caryophyllales
Family
Buckwheat
Genus
Reynoutria
Species
Japanese knotweed