How to grow Persicaria wallichii

Persicaria wallichii growing rhizome herbaceous of the genus Persicaria also known as Polygonum polystachyum or Himalayan Knotweed, Persicaria wallichii perennial evergreen or deciduous plant, used as ornamental plant and as groundcover, can grow in temperate, mediterranean or subtropical climate and growing in hardiness zone 4b-9.

Leaves color green in elliptic shape with wavy margins.

Persicaria wallichii flower

Flower color white to pink in star shape, flowers small and grow on stems in inflorescences

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Requirements for Persicaria wallichii growing and care:

Moist and rich soil

What is the best way to start growing?
Plant / Seed / Vegetative reproduction

Is it necessary to graft or use vegetative reproduction?

Difficulties or problems when growing:

Planting season:
Spring / Summer / Autumn

Pests and diseases:

Pruning season:
Autumn / Winter

How to prune:
For control and design

Size of the plant:
80-160cm, 36-72 inches

Growth speed in optimal condition:
Fast growing / Medium growing

Water requirement:
Average amount of water / Big amount of water

Light conditions in optimal condition for growing:
Full sun / Half shade

Is it possible to grow as houseplant?

Growing is also possible in a planter /flowerpot / containers:

Blooming information

Bloom season?
Summer / Autumn

General information about the flower:
Star flowers in color white to pink, the flowers small and grow on stems in inflorescences

Scientific name:

Persicaria wallichii

Blooming Seasons

Flower Colors


Ornamental parts

Plant growing speed

Plant life-form

Plant uses

Planting season

Plants sun exposure

Watering plants

Hardiness zone