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Persicaria praetermissa

Persicaria praetermissa

  • Also known as Persicaria praetermissa 'Rubra' and 'Ruby'
  • Narrow, spear-shaped leaves
  • Brown-red tones, wine red leaf underside
  • Slanting to horizontal growth
  • Rarely available
In stock, only 16 left
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This knotweed was first introduced as Polygonum sp. 'Ruby' and later identified as Persicaria praetermissa ( = Polygonum praetermissum). This plant occurs in wide areas of tropical Asia and Australia, in marshy areas and on streamsides, and can grow above and below water. It has an interesting hastate leaf shape and develops nice reddish tones in its submerged forms. It is also an unusual stem plant due to its partly horizontal growth.

Persicaria praetermissa is not too difficult, however medium to strong lighting and a good nutrient and CO2 supply are beneficial. It grows rather fast and is easily propagated by cuttings.

With its unusual horizontal growth habit, conspicuous leaf shape and nice, rather dark colours, this knotweed species is best placed as an accent plant in the midground, contrasting to light green, finely textured plants. Persicaria praetermissa is also interesting as emersed plant for paludariums and Wabi-Kusa.

Please be aware that the submerse form of this plant could contain snails and other invertebrates.



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Matthijs S.
Rare and pretty!
29th November 2017
Persicaria praetermissa - Pot
Persicaria praetermissa - Pot

I only ordered one bunch but it came with many stems of healthy leaves and plenty of established roots. (read more)