Polygonum japonicum

Japanese Knotweed, Mexican Bamboo

Family: Polygonaceae Buckwheat


Type Perennial
USDA Hardiness range 4A - 8B
Exposure Full sun
Bloom color Pink
Bloom time Mid Summer to Early Fall
Water needs Moist
Landscape uses Container, ground cover, specimen, woodland garden
Height 36" to 6' / 90cm to 1.80m
Spread 0" to 36" / 0cm to 90cm
Growth rate Fast
Persistence Deciduous, broadleaf
Leaf color Green
Fruit color n/a
Soil type Sandy, clay, loamy
Form Upright or erect
Attributes and features Attractive foilage