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Persicaria amphibia
Persicaria amphibia
Persicaria amphibia
Persicaria amphibia

Persicaria amphibia

TAXONOMY

FamilyPolygonaceae
GenusPersicaria
Zone4

ABOUT

Persicaria amphibia, commonly known as water knotweed or amphibious bistort, is a perennial plant in the family Polygonaceae. It is native to temperate regions and can be found in both aquatic and terrestrial habitats. The plant has a unique ability to thrive in waterlogged conditions, making it a helophyte. It undergoes a dormancy period during the colder months.

ALSO KNOWN AS

Amphibious Bistort
Chulusium Fluitans
Chulusium Natans
Chulusium amphibium
Persicaria amphibia
Persicaria amphibia var. emersa
Persicaria amphibia var. stipulacea
Persicaria amphibia var. terrestris
Persicaria amurensis
Persicaria coccinea
Persicaria hartwrightii
Persicaria muhlenbergii
Polygonum amphibium
Polygonum amphibium subsp. laevimarginatum
Polygonum amphibium var. amurense
Polygonum amphibium var. emersum
Polygonum amphibium var. muehlenbergii
Polygonum amphibium var. stipulaceum
Polygonum amphibium var. terrestre
Polygonum amphibium var. vestitum
Polygonum coccineum
Polygonum coccineum var. pratincola
Polygonum coccineum var. rigidulum
Polygonum emersum
Polygonum hartwrightii
Polygonum muhlenbergii
Polygonum natans
Polygonum rigidulum
Polygonum salicifolium

OVERVIEW

WaterVery Wet
SoilLoamy
LightMedium (6 Hours)
Temperature20° C
Humidity70%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

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DETAILS

Care Instructions
Persicaria amphibia requires moderate temperatures and thrives in environments with high humidity. It prefers medium light conditions and should be kept in consistently wet soil. Regular watering is essential to maintain its growth, especially during the growing season.
Soil
This plant prefers loamy soil that is consistently wet or waterlogged. Good drainage is not a primary concern as the plant thrives in waterlogged conditions. Ensure the soil remains nutrient-rich to support its growth.
Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant during the growing season to provide essential nutrients. Avoid over-fertilizing as it can lead to nutrient burn.
Repotting
Repotting is necessary when the plant outgrows its current container or if the soil quality degrades. Repot during the early growing season, ensuring the new container has ample space for root expansion and is filled with nutrient-rich, loamy soil.
Propagation
Propagate Persicaria amphibia through division or cuttings. The best time to propagate is during the growing season. Ensure the cuttings or divisions are placed in consistently wet soil to encourage root development.
Pruning
Pruning is required to maintain the plant's shape and remove any dead or damaged foliage. Prune during the growing season to encourage new growth and maintain overall plant health.
Toxicity
Persicaria amphibia is not known to be toxic to pets or humans. However, it is always advisable to handle plants with care and wash hands after handling.
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