Also known as Thunberg’s Smartweed
Persicaria thunbergii is a vigorous, sprawling groundcover with attractive, heart-shaped leaves and delicate, arching stems. It thrives in moist conditions.
At-a-glance light, water, soil, and growing conditions from plant data
Full sun to partial shade
75% intensity
Prefers at least 6 hours of direct sunlight daily for best flowering, but can tolerate some shade.
Regular watering
75% intensity
Keep soil consistently moist, but avoid waterlogging. Water more frequently during dry spells.
Well-drained, moist
50% intensity
Moderate
50% intensity
Prefers temperatures between 18-24°C during the growing season. Tolerates cooler temperatures in winter.
Light feeding
25% intensity
Fertilize sparingly in spring with a balanced fertilizer. Avoid over-fertilization.
Safety information from plant toxicity data
| Attribute | Value |
|---|
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Persicaria thunbergii prefers consistently moist soil. Water regularly, especially during dry periods, to maintain soil moisture.
Avoid letting the soil completely dry out, but also ensure good drainage to prevent waterlogging. Aim for the soil to feel damp to the touch.
Prune in late winter or early spring to remove any dead, damaged, or overgrown stems. This encourages fresh growth and helps maintain a desirable shape.
Pinching back the tips of young shoots can promote bushier growth and more abundant flowering throughout the season.
Persicaria thunbergii can be propagated by division of clumps in spring. Alternatively, softwood cuttings can be taken in late spring or early summer and rooted in moist, well-drained potting mix, often with the aid of a rooting hormone.
Repot young plants annually in spring into a slightly larger container. Mature plants can be repotted every 2-3 years as needed, or when rootbound.
Ensure the new pot has adequate drainage holes and use a good quality, general-purpose potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Persicaria Thunbergii (Persicaria thunbergii)
Where Persicaria Thunbergii (Persicaria thunbergii) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Polygonaceae |
| Genus | Persicaria |
| Species | Persicaria thunbergii |
Similar in genus Persicaria
Answers based on plant encyclopedia data
