close up mass of bright scarlet red spikes of persicaria amplexicaulis `firetail` red bistort flowers on long stems

amplexicaule amplexicaulis august background beauty bistort blooms border bright close closeup cluster colorful colour colourful delicate dense detail dramatic english fire firetail floral flowerbed flowering flowers foliage green group growth herb herbaceous horizontal large leaf leaves long mass moody nobody ornamental outdoor perennial persicaria pink plant polygonum pretty red romantic scarlet soft spike spikes spreading stem stems summer tail upright wild