Persicaria microphylla 'Red Dragon' (knotweed 'Red Dragon') is a member of the Polygonaceae family. This perennial exhibits a trailing growth habit and is characterised by its semi evergreen foliage. It has a hardiness rating of hardy (average winter [-10 to -5ºc]) and is hardy throughout most of the UK apart from inland valleys, at altitude, and in central/northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens, with plants in pots being more vulnerable.
When fully mature, Persicaria microphylla 'Red Dragon' can reach an ultimate height of 1–1.5 m and a spread of 0.5–1 m.
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Stem
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