Polygonum genus (Knotweed). These are annuals, perennials some of which are evergreen, also deciduous, woody-stemmed, twining climbers.
Annuals or Perennials, Deciduous or Evergreens, Shrubs or Vines
Can be used for ground cover, edging or rock gardens. Suitable for coastal conditions. Attracts butterflies.
They are fully to half hardy and will tolerate sun or shade in well drained soil.
Seed or division in autumn or spring, climbers only by semi-ripe cuttings in summer.
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