Persicaria
Knotweed
Poor Persicaria! Certain weedy, invasive members of the genus have given the rest a bad name, and discouraged gardeners from getting to know these versatile performers. Our garden-worthy selections are happiest in semishade with ample moisture.
Hats off to Belgian plant breeder Chris Ghyselen for this relatively new cultivar that expands the species’ floral spectrum with a lovely shade of mauve suffusing its spiky rich pink flowers. The lavish flower display tirelessly persists into early autumn atop a lush brawny ensemble defined by large arrow-shaped green leaves with reddish margins. Tantalizing to pollinators and plant-alcoholics, ‘Amethyst Summer’ can rollick amid other late season bloomers such as Echinops ‘Taplow Blue’ or Aster ‘Violetta’.
Blooms AugustOctober
Size: 3' 0" high x 3' 0" wide.
Zone 5/6.
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Other selections in this genus:
- Persicaria affinis ‘Dimity’
- Persicaria amplexicaulis ‘Fat Domino’
- Persicaria amplexicaulis ‘Alba’
- Persicaria amplexicaulis ‘Anne′s Choice’
- Persicaria amplexicaulis ‘Atrosanguinea’
- Persicaria amplexicaulis ‘Blackfield’
- Persicaria amplexicaulis ‘Golden Arrow’
- Persicaria amplexicaulis ‘Inverleith’
- Persicaria amplexicaulis ‘Orange field’
- Persicaria amplexicaulis ‘Purple Spears’
- Persicaria amplexicaulis ‘Rosea’
- Persicaria amplexicaulis ‘Summer Dance’
- Persicaria amplexicaulis ‘Taurus’
- Persicaria bistorta ‘Hohe Tatra’
- Persicaria bistorta ‘Superba’
- Persicaria microcephala ‘Red Dragon’
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