| Scientific Name: | Persicaria microcephala 'Red Dragon' |
| Common Name: | Red Dragon knotweed |
| Family Name: | Polygonaceae |
| Origin: | Garden origin |
| Hardiness Zone: | Zone 6: (-23 to -18 °C) |
| Plant Type: | Herbaceous perennial |
| Mature Size: | 0.7 - 1.3m x 0.6 - 1.0m (height x width) |
| Habit: | Arching, Irregular, Open, Spreading |
| Form: | Oval - horizontal, Round |
| Texture: | Medium |
| Landscape Uses: | Accent plant, Container planting, Cut flower or foliage, Group or mass planting, Perennial border |
| Exposure: | Full sun, Part sun/part shade, Filtered shade, Deep shade |
| Soil or Media: | Well-drained |
| Leaves: | Simple, Alternate, Soft flexible, Pinnate venation, Glabrous, Ovate, Crenate, Undulate (wavy) |
| Flowers: | Thyrse, White, Jun-Jul-Aug-Sep-Oct |
| Fruit: | Achene, Brown, Sep-Oct |
| Key ID Features: | |
| Leaves alternate, ovate (almost triangular), most blades reach 10-15cm long x 4-7cm wide, purple or have green margins with dark purple center with a lighter halo around it; stems purple with sheathed swollen nodes. | |