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Polygonum lapathifolium (Curly-top Knotweed, Willow Weed)

Type: Species | Edit History      Plant ID - 20860



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FlowerFreak22 (9625)

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Scientific Classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Polygonales
Family: Polygonaceae
Genus: Polygonum
Species: Polygonum lapathifolium
 
Common Names add
Plant Types edit
  • Annual
Zones / Hardiness edit
  • 1 (Below -50 F / Below -45 C)
  • 2a (to -45 F / -43 C)
  • 2b (to -40 F / -40 C)
  • 3a (to -35 F / -37 C)
  • 3b (to -30 F / -34 C)
  • 4a (to -25 F / -32 C)
  • 4b (to -20 F / -29 C)
  • 5a (to -15 F / -26 C)
  • 5b (to -10 F / -23 C)
  • 6a (to -5 F / -21 C)
  • 6b (to 0 F / -18 C)
  • 7a (to 5 F / -15 C)
  • 7b (to 10 F / -12 C)
  • 8a (to 15 F / -9 C)
  • 8b (to 20 F / -7 C)
  • 9a (to 25 F / -4 C)
  • 9b (to 30 F / -1 C)
Height (Maximum) edit
  • 2 to 5 feet (60 cm to 1 1/2 m)
Spread (Maximum) edit
Flowering Start edit
  • July
Flowering End edit
  • October
Leaf Colour edit
  • Green - Medium
Leaf Shape edit
  • Alternate
  • Lanceolate
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Suitable For edit
  • Low Maintenance Garden
Sun Exposure edit
  • Full Sun
Soil Types edit
  • Dry
  • Moist
  • Sandy / Light
  • Boggy
Soil pH edit
Bloom Colour edit
  • White
Wildlife Value edit
Propagation Techniques edit
Skill Level edit
Additional Short Notes add
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Members who grow this plant also grow...
  Lamium amplexicaule (Henbit, Henbit Deadnettle)
  Salicornia virginica (Virginia Glasswort, Pickleweed)
  Polygonum punctatum (Dotted Smartweed)
  Asclepias tuberosa (Butterfly Milkweed, Butterfly Weed)


Contributors For This Plant
toni (36069)
FlowerFreak22 (9625)


Gardens Containing This Plant
FlowerFreak22's Garden


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Photo of Polygonum lapathifolium (Curly-top Knotweed, Willow Weed)
Polygonum lapathifolium (Curly-top Knotweed, Willow Weed)
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Uploaded
Apr 26 2009
by FlowerFreak22 (9625)
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Other names for this plant:
Persicaria incarnata
Persicaria lapathifolia
Persicaria tomentosa
Polygonum incanum
Polygonum incarnatum
Polygonum nodosum
Polygonum oneillii
Polygonum scabrum
Polygonum tomentosum



This page includes name data supplied by ITIS.gov. View their own page for this plant.