Polygonum microcephalum — a medium houseplant, prefers partial sun light
SPECIMEN · FROM THE LIBRARY
Polygonum microcephalum

Polygonum Microcephalum

Updated · 6 observations
ON THIS PLANT

Polygonum microcephalum is a perennial edible shrubs growing up to 0.5m by 0.5m. This species is hermaphrodite (has both male and female organs). It is available in East Asia, Himalayas, Assam Nepal etc.

Regional Names include Modhuxuleng in Assamese.

A note from PlantMom

Small-headed knotweed is fairly disease-resistant and typically does not suffer from many illnesses. That said, it can be vulnerable to pests and diseases present in its surroundings. Such infections are usually not serious. In terms of care, the plant requires moderate maintenance. It should be pruned regularly to keep a tidy appearance and encourage healthy growth. Fertilizing can also help boost flowering. Small-headed knotweed is suitable for anyone with outdoor space, such as a garden or patio, and does not demand much prior care experience. It may need additional attention if grown indoors.

— PlantMom
CARE GUIDE

How to keep Polygonum Microcephalum.

Light

For healthy development, the small-headed knotweed depends on moderate sunlight. It neither needs nor prospers in intense light. In its natural habitat it grows in dappled light. Excessive exposure can be damaging, while insufficient light leads to weak, stunted growth.

Temperature

Small-headed knotweed comes from areas that experience variable temperature ranges. It thrives in temperatures from 50 to 95 °F (10 to 35 °C). Monitor the local climate and, when necessary, supply supplemental heating or natural shade.

Fertilizer

A single spring application of fertilizer is generally enough for Small-headed knotweed, though repeated feedings can boost growth. Apply every month to six weeks. Fertilizing improves leaf appearance and function, helping maintain even color and a healthy texture. It also encourages root development and nutrient uptake, supporting the plant’s long-term health.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial
Genus
Polygonum
Family
Polygonaceae
Hardiness Zone
6-9
Mature Height
61 cm to 91 cm
Mature Spread
61 cm to 91 cm
Leaf Color
Green, Silver, Purple, Bronze
Leaf Type
Semi-evergreen
Flower Color
White, Pink
Flower Size
2.54 cm to 5.08 cm
Bloom Time
Early summer, Mid summer
Planting Time
Spring
Harvest Time
Mid summer, Late summer
Native Area
Nepal, India, Vietnam, Bhutan, Bangladesh, China
ALSO KNOWN AS

Other names.

en Red Dragon
PLATES
Polygonum microcephalum leaf
PLATE 01 · leaf
Polygonum microcephalum leaf
PLATE 02 · leaf
Polygonum microcephalum flower
PLATE 03 · flower
Polygonum microcephalum flower
PLATE 04 · flower
Polygonum microcephalum fruit
PLATE 05 · fruit
Polygonum microcephalum bark
PLATE 06 · bark
ALSO IN THE LIBRARY

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