Persicaria amplexicaulis 'Firetail' - Red Fleeceflower or Knotweed
Want to know what plant is 'all the rage' in Europe? and a 2010 Royal Horticultural Society Plant of Merit?
The 3' - 4 ft tall 'Firetail' Knotweed or Persicaria amplexicaulis ‘Firetail’
Beloved by James Van Sweden and Piet Oudolf, this non-invasive Himalayan perennial adds a “nice red spark” to the late summer garden (from July through Frost). It forms a bushy mound of foliage topped by brightly colored “tails” of tiny crimson flowers.
It looks great in a mass planting and wonderful as a background for Asters, mums, short grasses, geranium 'rozanne'. Contrasts well with purple salvia, echinops, helianthus, nepeta or perovskia. Also effective in moist areas along streams or ponds. Underplant it with early-spring-blooming bulbs for color in the spring .
Persicaria amplexicaulis prefers moist soils and partial sun to full sun conditions. It has no serious disease or insect problems. Hardiness USDA zones 5 to 9
Persicaria Pink Elephant from Chris Ghyselen