Reynoutria japonica
TAXONOMY
FamilyPolygonaceae
GenusReynoutria
Zone5
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Reynoutria japonica, commonly known as Japanese Knotweed, is a perennial plant native to East Asia. It is known for its rapid growth and ability to spread aggressively through rhizomes. This plant is often found in temperate climates and can grow in a variety of soil types. It has a dormancy period during the winter months.
ALSO KNOWN AS
Japanese Knotweed
Pleuropterus Cuspidatus
Pleuropterus Zuccarinii
Fallopia compacta
Fallopia japonica
Fallopia japonica f. colorans
Fallopia japonica var. compacta
Fallopia japonica var. hachidyoensis
Fallopia japonica var. uzenensis
Polygonum compactum
Polygonum cuspidatum
Polygonum cuspidatum var. spectabile
Polygonum hachidyoense
Polygonum reynoutria
Polygonum reynoutria f. colorans
Polygonum sieboldii
Polygonum zuccarinii
Reynoutria compacta
Reynoutria hachidyoensis
Reynoutria hachidyoensis var. terminalis
Reynoutria hachijoensis
Reynoutria hastata
Reynoutria henryi
Reynoutria japonica var. compacta
Reynoutria japonica var. hastata
Reynoutria japonica var. spectabilis
Reynoutria japonica var. terminalis
Reynoutria japonica var. uzenensis
Reynoutria uzenensis
Tiniaria japonica
OVERVIEW
VPDCalculate
WaterWet
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity60%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Japanese Knotweed requires bright, direct sunlight and moderate temperatures to thrive. It prefers soil that is kept evenly moist and can tolerate a range of humidity levels. Regular pruning is necessary to control its growth.Soil
This plant prefers loamy soil with good drainage. It can tolerate a range of soil pH levels but thrives best in slightly acidic to neutral soil. Ensure the soil remains moist but not waterlogged.Fertilizer
Japanese Knotweed does not have specific fertilizer requirements. It can grow well in moderate nutrient concentrations and does not typically require additional fertilization.Repotting
Repotting is generally not necessary for Japanese Knotweed as it is primarily an outdoor plant. However, if grown in a container, repotting should be done in early spring before new growth begins.Propagation
Japanese Knotweed can be propagated through rhizome cuttings. The best time to propagate is in early spring or late fall. Ensure that each cutting has at least one node and plant it in moist soil.Pruning
Pruning is essential to control the spread of Japanese Knotweed. Prune back the stems to ground level in late fall or early spring before new growth starts. Regular pruning throughout the growing season can help manage its aggressive growth.Toxicity
Japanese Knotweed is not toxic to pets or humans. However, its aggressive growth can outcompete native plants and disrupt local ecosystems.Additional
Japanese Knotweed is considered an invasive species in many regions. It is important to manage its growth carefully to prevent it from spreading uncontrollably. Regular monitoring and maintenance are crucial.REVOLUTIONIZE YOUR PLANT CARE
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