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USDA-NRCS PLANTS Database / USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. |
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Thomas G. Barnes @ USDA-NRCS PLANTS Database / Barnes, T.G., and S.W. Francis. 2004. Wildflowers and ferns of Kentucky. University Press of Kentucky. |
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Summary
Bloom Color: Green, Pink, White. Main Bloom Time: Early fall, Late summer. Form: Irregular or sprawling.
Physical Characteristics

Polygonum virginianum is a PERENNIAL growing to 0.6 m (2ft) by 0.6 m (2ft in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 5. It is in flower from August to October, and the seeds ripen from September to November. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
P. filiforme. Dougl.
Habitats
Woodland Garden Dappled Shade; Shady Edge;
Edible Uses
Edible Parts: Leaves Seed
Edible Uses:
Leaves - raw or cooked[105, 177]. Seed - raw or cooked. It is rather small and fiddly to utilize.
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Astringent Demulcent Diuretic Pectoral Tonic
The plant is astringent, demulcent, diuretic, pectoral and tonic[178, 240]. A hot infusion of the leaves, combined with honey locust bark (Gleditsia triacanthos) has been used in the treatment of whooping cough[257].
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
Landscape Uses:Ground cover, Specimen. Succeeds in an ordinary garden soil[1] but prefers a moisture retentive not too fertile soil in sun or part shade[200]. Repays generous treatment[1]. Plants seem to be immune to the predations of rabbits[233]. A polymorphic species[58]. Special Features:
Attractive foliage, North American native, Invasive.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
Fahrenheit:
The PFAF Bookshop
Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.
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Propagation
Seed - sow spring in a cold frame. Germination is usually free and easy. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer if they have reached sufficient size. If not, overwinter them in a cold frame and plant them out the following spring after the last expected frosts. Division in spring or autumn. Very easy, larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.
Other Names
If available other names are mentioned here
Found In
Countries where the plant has been found are listed here if the information is available
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
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Latin Name | Common Name | Habit | Height | Hardiness | Growth | Soil | Shade | Moisture | Edible | Medicinal | Other |
Polygonum alaskanum | Alaska Wild Rhubarb | Perennial | 1.8 |
-
| | LMH | SN | M | 2 | 1 | |
Polygonum alpinum | Alpine Knotweed, Alaska wild rhubarb | Perennial | 1.0 |
4-8
| | LMH | SN | M | 2 | 1 | |
Polygonum amphibium | Willow Grass, Water knotweed, Longroot smartweed, Water smartweed | Perennial | 0.3 |
4-8
| | LMH | SN | WeWa | 1 | 2 | 1 |
Polygonum arenastrum | Small-Leaved Knotweed, Oval-leaf knotweed | Annual | 0.3 |
4-8
| | LMH | SN | M | 2 | 3 | 1 |
Polygonum aviculare | Knotweed, Prostrate knotweed | Annual | 0.3 |
4-8
| | LMH | SN | M | 2 | 3 | 1 |
Polygonum barbatum | Joint Weed | Perennial | 0.8 |
-
| | LMH | SN | M | 1 | 1 | |
Polygonum bistorta | Bistort, Meadow bistort, Snakeweed | Perennial | 0.5 |
4-7
| F | LMH | SN | MWe | 3 | 3 | 2 |
Polygonum bistortoides | American Bistort | Perennial | 0.5 |
4-8
| | LMH | SN | M | 3 | 1 | |
Polygonum bungeanum | Bunge's smartweed | Annual | 0.8 |
0-0
| | LMH | SN | M | 1 | 0 | |
Polygonum coccineum | Water Smartweed | Perennial | 0.5 |
4-8
| | LMH | SN | WeWa | 1 | 0 | |
Polygonum conspicuum | | Perennial | 0.6 |
-
| | LMH | SN | M | 1 | 0 | |
Polygonum convolvulus | Black Bindweed | Annual | 1.2 |
0-0
| | LMH | SN | M | 1 | 0 | 0 |
Polygonum divaricatum | | Perennial | 1.0 |
-
| | LMH | SN | DM | 1 | 0 | |
Polygonum douglasii | Knotweed, Douglas' knotweed, Austin knotweed, Engelmann's knotweed, Johnston's knotweed, Large kno | Annual | 0.3 |
0-0
| | LMH | SN | DM | 2 | 0 | |
Polygonum dumetorum | Climbing false buckwheat | Annual | 1.8 |
0-0
| | LMH | SN | M | 1 | 1 | |
Polygonum equisetiforme | | Perennial | 1.0 |
7-10
| | LMH | N | DM | 1 | 0 | 2 |
Polygonum fugax | | Perennial | 0.0 |
-
| | LMH | SN | M | 3 | 0 | |
Polygonum hydropiper | Smartweed, Marshpepper knotweed | Annual | 0.8 |
0-0
| | LMH | N | WeWa | 2 | 2 | 1 |
Polygonum japonicum | Japanese Knotweed, Mexican Bamboo, Japanese Knotweed | Perennial | 3.0 |
4-10
| F | LMH | SN | M | 3 | 3 | 3 |
Polygonum lapathifolium | Curlytop Knotweed | Annual | 0.8 |
4-8
| | LMH | SN | MWe | 1 | 1 | 1 |
Polygonum limosum | | Perennial | 1.8 |
-
| | LMH | SN | M | 1 | 0 | |
Polygonum longisetum | Oriental lady's thumb | Annual | 0.5 |
0-0
| | LMH | SN | MWe | 1 | 0 | |
Polygonum maackianum | | Annual | 0.8 |
-
| | LMH | SN | MWe | 1 | 0 | |
Polygonum manshuriense | Asian Bistort | Perennial | 0.8 |
-
| | LMH | SN | Mwe | 0 | 1 | |
Polygonum microcephalum | | Perennial | 0.5 |
-
| | LMH | SN | M | 1 | 0 | |
Polygonum minus | Pygmy smartweed | Annual | 0.3 |
0-0
| | LMH | SN | MWe | 1 | 0 | |
Polygonum molle | | Perennial | 2.5 |
6-9
| F | LMH | SN | M | 2 | 1 | 2 |
Polygonum multiflorum | He Shou Wu, Tuber fleeceflower | Perennial Climber | 4.5 |
6-9
| | LMH | SN | M | 2 | 3 | |
Polygonum nepalense | Nepalese smartweed | Annual | 0.3 |
0-0
| | LMH | SN | MWe | 1 | 1 | 1 |
Polygonum orientale | Prince's Feather, Kiss me over the garden gate | Annual | 1.5 |
0-0
| | LMH | SN | M | 2 | 2 | 0 |
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Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
L.
Botanical References
58200
Links / References
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Subject : Polygonum virginianum
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