Description
A naming mess. Even experts cannot agree on the name. Flora of China calls this Polygonum amplexicaule var. amplexicaule and lists 7 synonyms. The Missouri Botanic Garden says this is the same as Persicaria amplexicaule ‘Firetail.’ Regardless of the name it’s a queen of flowers with magenta spikes lasting from late June to October. One of internationally known garden designer Piet Oudolf’s “MUST HAVE” plants. Gardens Illustrated 94 (2013)