
trefle.io · Taken Aug 8, 2017 by Cruz Fer (cc-by-sa)
Polygonaceae
Pale knotweed
Persicaria lapathifolia
Also known as Polygonum sarbhanganicum, Polygonum ochreatum, Polygonum hassanabdalicum, Polygonum euryphyllum
Native Plants · Knotweed · Wildflower · Wetland · Pond Margin · Wildlife Garden · Perennial · Native · Birds · Low-Maintenance · Persicaria
Pale knotweed is a hardy, adaptable plant that grows well in moist to average soils in sunny or partially shaded locations. It is a low-maintenance plant that requires regular watering to keep soil moist, particularly in drier periods. Best used in naturalized areas, pond margins, or wildlife gardens where its seeds provide food for birds.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water moderately; keep soil moist but ensure good drainage to prevent root rot · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -25°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Ascension, Assam, Austria, Azores, Baleares, Baltic States, Bangladesh
- Attracts
- Bees, Birds
Sources: trefle, usda
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