Knotweeds (in the diverse buckwheat or Polygonaceae family) were the plants I said were used well in June Blake’s garden. POLYGONACEAE Other Plants in the Buckwheat Family: COMMON NAME(S) Red Bistort | Mountain Fleece Location Map for Persicaria amplexicaulis 'Firetail' (Red Bistort; Mountain Fleece) - 5 Map Locations Found Click a marker pin or a green plant 'dot' for details. Spreading plant to 1 feet high, 2 feet or more wide. Map Help ^Top of Page. Its leaves are dark green, arrow-shaped, and slightly puckered. Himalayan native. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. This vigorous but noninvasive perennial flowers from early summer into autumn with crimson blossoms to 6 inches long. Others, like our covergirl, Persicaria amplexicaulis ‘Firetail’ seen at the Toronto Botanical Garden, can make handsome garden plants, for flowers, or foliage, or both. HARDINESS: USDA Zone 5 (Coldest zone where hardy) ... Persicaria amplexicaulis 'Firetail' Leaf: Persicaria amplexicaulis 'Firetail' Flower: Persicaria amplexicaulis 'Firetail' ^Top of … Bistorta amplexicaulis 'Firetail' NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to form a strategic partnership called N.C. Persicaria amplexicaulis 'Firetail' Your search resulted in one taxon in our living collections. See more photographs of each plant by clicking on the photographs. You will be charmed by the bountiful long-blooming spikes of vivid red flowers of Himalayan Knotweed. I wouldn’t recommend it for the small garden but a nice patch in the larger garden or border is nice. Deep green, lance-shaped, finely tooth-edged leaves are mostly basal; they grow 2412 inches long, turn bronze in winter. Developed by Blooms of Bressingham this hardy plant is a slow spreader. Persicaria amplexicaulis. https://www.soonerplantfarm.com/plant/fleece-flower-firetail Polygonaceae (Buckwheat Family) HABIT: Herbaceous: SUN REQUIREMENTS: Sun: SOIL: Wet, moist or average. Display each plant's location on a map of the JCRA's beds by clicking on the bed numbers. Persicaria amplexicaulis, Polygonum amplexicaule: Common name: fleeceflower: Family: polygonaceae: Life cycle: perennial (Z5-9) Flowers: purple (late summer-fall) Size: 3' Light: sun-part shade: Cultural notes: ordinary garden soil (not too dry) The "knobby knees" of Polygonum refers to its jointed stems. Persicaria amplexicaulis 'Firetail' per-sih-KAR-ee-ah am-pleks-ih-KAWL-is. Persicaria amplexicaulis 'Firetail' (per-sih-KAR-ee-uh) (am-pleks-ih-KAW-liss) Polygonaceae This is an interesting perennial that you don’t see very often. 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