Polygonum japonicum 'Compactum'
Japanese Knotweed, Mexican Bamboo
Family: Polygonaceae Buckwheat
| Type | Perennial |
| USDA Hardiness range | 4A - 10A |
| Exposure | Full sun |
| Bloom color | Pink |
| Bloom time | Late Summer to Mid Fall |
| Water needs | Moist |
| Landscape uses | Container, specimen, woodland garden |
| Height | 24" to 36" / 60cm to 90cm |
| Spread | n/a |
| Growth rate | Fast |
| Leaf color | Green |
| Fruit color | n/a |
| Soil pH requirements | Neutral |
| Soil type | Loamy |
| Form | Upright or erect |
| Attributes and features | Attractive foilage |