'Firetail' Knotweed - Pow!

Want to know what is beloved by James Van Sweden and Piet Oudolf and was a 2010 Royal Horticultural Society Plant of Merit? Hardiness USDA zones 5 to 9.
The 'Firetail' Knotweed or Persicaria amplexicaulis speciosa ‘Firetail’ - It is3' - 4 ft tall.
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. Underplant it with early-spring-blooming bulbs for color in the spring .
It looks great in a mass planting and wonderful as a background for Asters, mums, short grasses, geranium 'rozanne'.
It contrasts well with purple salvia, echinops, helianthus, nepeta or perovskia. Also effective in moist areas along streams or ponds.
avalon perennials
Persicaria amplexicaulis prefers moist soils and partial sun to full sun conditions. It has no serious disease or insect problems.
Persicaria Pink Elephant from Chris Ghyselen
Ther…
The 'Firetail' Knotweed or Persicaria amplexicaulis speciosa ‘Firetail’ - It is3' - 4 ft tall.
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. Underplant it with early-spring-blooming bulbs for color in the spring .
It looks great in a mass planting and wonderful as a background for Asters, mums, short grasses, geranium 'rozanne'.
It contrasts well with purple salvia, echinops, helianthus, nepeta or perovskia. Also effective in moist areas along streams or ponds.
avalon perennials
Persicaria amplexicaulis prefers moist soils and partial sun to full sun conditions. It has no serious disease or insect problems.
Persicaria Pink Elephant from Chris Ghyselen
Ther…