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Information for
Polygonum virginianum

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Approximately 125.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

Polygonum virginianum
We do not know how many seeds there will be in a packet !
If we know the quantity of seeds, we list the quantity as:
examples '200 seeds' or '0.50 gram', not as packet.
1 packet for 4 Euros
available for preorder


Polygonum virginianum
75 seeds for 8 Euros
available for preorder


0.50 gram for 9 Euros
in stock *    Polygonum virginianum    *

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Polygonum virginianum
1 gram for 15 Euros
available for preorder


Polygonum virginianum
3.50 gram for 21 Euros
available for preorder


Polygonum virginianum
7 gram for 30 Euros
available for preorder


Polygonum virginianum
14 gram for 45 Euros
available for preorder


Polygonum virginianum
28 gram for 67 Euros
available for preorder


Polygonum virginianum
10 gram for 111 Euros
available for preorder


Polygonum virginianum
100 gram for 869 Euros
available for preorder


Polygonum virginianum
454 gram for 917 Euros
available for preorder



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Polygonum virginianum

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 73290

The average, annual, minimum temperature zone where Polygonum virginianum is cold hardy
USDA Zone:4-
Type of plant - perennial
Flower or inflorescence: PINK or GREEN-WHITE, slender spikes, July - Aug.
Fruit: .........(stratify 2 months or vernalise nat.)
Foliage: ov.-ell., 8-15cm. long
Height, in meters: 1.2
Height, in feet: 3.96
Polygonum virginianum sales history

Synonyms (alternative names) for Polygonum virginianum:
Persicaria virginiana, Polygonum filiforme, Tovara filiformis, Tovara virginiana, 

Common names for Polygonum virginianum:

Knoterich,  Tovara,  Woodland Knotweed, 


Polygonum virginianum is included in the following
B and T World Seeds flowering plant categories.

1:   Stock list
Our stock changes almost every day, with seeds arriving and being shipped all over the world.
We only stock long lived seeds, except for a few species that are always in demand.
Seeds that are not in stock are acquired fresh when ordered.
38:   Indian Native and Introduced Plants
43:   Herbaceous Border Plant Seed List
50:   Japanese Native and Introduced Plants
86:   Natives of U.S.North East
574:  Polygonaceae


Happier and Healthier Plants, Naturally

plant-fungus communities, for improved nutrition, and disease and drought resistance.


Germination guide for Polygonum virginianum

These notes are a general guide, it is recommended to check specialist literature for some of the more unusual seeds in our lists.
Seed Germination Theory and Practice by Professor Norman C. Deno
Some knowledge about growing from seed is necessary to germinate even the easiest seeds. Most seeds require humidity to germinate, even desert plants like Welwitschia mirabilis require that their growing medium remains moist until germination.

Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet, the seeds may not get the oxygen they require.
Some seeds need to be in the light (surface sown) or in the dark (sown deep enough to receive little or no light) to germinate. A rule of thumb is to cover the seeds their own width deep in the growing medium, but some seeds prefer to be sown much deeper, and some fairly large seeds like to be surface sown (or higher).
Many seeds germinate best at certain temperatures, some will germinate at a comparatively wide range of temperatures, yet others need fluctuating temperatures.
Almost all seeds are waiting in a dormant state for some outside stimulus to break their dormancy, some just need sufficiently high ambiant humidity, others need scarification, vernalization or to be passed through the intestines of an animal.

Polygonum virginianum seeds will usually germinate in 21-60 days, even under good conditions germination may be erratic.
Sow Polygonum virginianum seeds about 2mm deep in a Peaty seed sowing mix at about 22°C.

Do not overwater


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