Fire Tail mountain fleeceflower (Persicaria amplexicaulis 'Fire Tail') will grow to 4 feet tall  and feature thin, red flower stalks in late summer and fall. This species is not invasive, unlike many other taxa in this genus, but it does need a large space. Use 'Fire Tail' at the back of a large border or mixed bed. This cultivar earned a 2010 Plant of Merit award from the Royal Horticultural Society and is used frequently in landscape designs by James van Sweden and Piet Oudolf.