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Pogostemon helferi

Downoi

Pogostemon helferi

Downoi

  • Small highly decorative plant
  • Curled, very narrow leaves
  • Eyecatcher for the fore- and middleground
  • Very popular in aquascaping
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Description

"Daonoi" is an odd plant growing in fast-flowing rivers in northwest Thailand on limestone. It was long only known to science, but some years ago, some aquarists from Thailand discovered it for the hobby. It is characterised by compact growth, curly leaves and a nice light green hue.

Also called "daonoi" or "downoi" (Thai for "litte star"), Pogostemon helferi has been known to science for over 120 years, however, it was only discovered for aquaristic purposes in 1996, by Nonn Panitvong and Arthit Prasartkul, who found it in the Thai province Kanchanaburi, on the border to Myanmar. Within only a short period, P. helferi has become a very popular aquarium plant for the fore- and middleground.
These authors found the species on a fast-flowing river with limestone ground. The plants grow on and between rocks, submersed for most of the rainy season in summer, and often in a strong current. During autumn and winter, the populations of P. helferi fall dry and form upright shoots with striking flower spikes typical for the genus Pogostemon.

This Pogostemon species is easy in cultivation, given that specific requirements are met: sufficient light (0. (read more)

Common names Downoi
Synonyms Anuragia helferi (Hook. f.) Raizada, Dysophylla helferi Hook. f., Eusteralis helferi (Hook. f.) Panigrahi
Complete botanical name Pogostémon hélferi (Hook. f.) Press
Family Lamiaceae
Genus Pogostemon
Difficulty medium
Usage Epiphyte (growing on hardscape), Midground, Nano tanks, Foreground, group
Growth medium
pH value 5 - 7
Temperature tolerance 15 - 28°C
Carbonate hardness 2 - 14°dKH
General hardness 0 - 30°dGH
Propagation Cuttings, Splitting, cutting off daughter plants
Can grow emersed? yes
Source Flowgrow
Common names
Downoi
Synonyms
Anuragia helferi (Hook. f.) Raizada, Dysophylla helferi Hook. f., Eusteralis helferi (Hook. f.) Panigrahi
Complete botanical name
Pogostémon hélferi (Hook. f.) Press
Family
Lamiaceae
Genus
Pogostemon
Difficulty
medium
Usage
Epiphyte (growing on hardscape), Midground, Nano tanks, Foreground, group
Growth
medium
pH value
5 - 7
Temperature tolerance
15 - 28°C
Carbonate hardness
2 - 14°dKH
General hardness
0 - 30°dGH
Propagation
Cuttings, Splitting, cutting off daughter plants
Can grow emersed?
yes
Source
Flowgrow

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Customer reviews

This item has been rated 4.3 out of 5 stars
32 Reviews
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5 Stars(24)
4 Stars(1)
3 Stars(3)
2 Stars(2)
1 Star(2)
Jorge David Q.
totally shaked
31st August 2018
Pogostemon helferi - 1-2-GROW!
Pogostemon helferi - 1-2-GROW!

the picture is not real, plant is smaller, substrate is liquid and smell very bad. No roots impossible also with the aquascaping tools

Jorge David Q.
box open
31st August 2018
Pogostemon helferi - in Vitro XL
Pogostemon helferi - in Vitro XL

plant is arrived with box opened and plant become a ball. no roots, small amount, no possible to place in my aquarium

John L.
Nice foreground plant when healthy
17th October 2016

Fast and speedy delivery. Never had issues with this plant before as I used it in almost all my scapes. (read more)

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