Polygonum microcephalum 'Red Dragon'
Knotweed
Family: Polygonaceae Buckwheat
| Type | Perennial |
| USDA Hardiness range | 5A - 9A |
| Exposure | Partial shade to full sun |
| Bloom color | White |
| Bloom time | Mid Spring to Late Summer |
| Water needs | Moist |
| Landscape uses | Ground cover, massing |
| Height | 18" to 24" / 45cm to 60cm |
| Spread | 24" to 36" / 60cm to 90cm |
| Bloom attributes | Fragrant flowers |
| Leaf color | Green, purple, silvery, variegated |
| Fruit color | n/a |
| Soil pH requirements | Neutral |
| Soil type | Clay, loamy |
| Form | Rounded |
| Attributes and features | Attractive foilage, naturalizing |