Pogostemon Helferi Downoi | Aquarium Plants Factory®

Want a foreground plant that looks like nothing else? Pogostemon helferi grows tightly curled, deeply serrated leaves in a low rosette — the Thai name dao noi means "little star", which is exactly what a healthy plant looks like from above.

What You’ll Receive

Sold as loose fresh-cut plants, or potted plants:

• Bare-root Plants: Approx. 2-3 individual small plants, loose and with some root
• Potted Plants: Approx. 2-3 small plants with root potted in rockwool and net pot

Plant Profile

• Common name — Downoi, also known as Daonoi
• Scientific name — Pogostemon helferi
• Origin — Thailand
• Placement — Foreground
• Shipped size — Approx. 2-3 small plants, roughly 1-2 in
• Mature height — 2–4 in
• Suits — 10 gallons and up
• Growth rate — Slow

Care

• Difficulty — Intermediate
• Light — Medium to high. Strong light keeps the rosettes tight and low
• CO₂ — Recommended, not required
• Water — 68–78°F · pH 6.0–7.0. Prefers the cooler end
• Substrate — Required. Root and water column feeder
• Growth habit — Amphibious. Also grows emersed
• Propagation — Side shoots and runners

Grower’s Notes

• It wants cooler water than most. Downoi tops out around 78°F, noticeably lower than the 82°F most of our plants tolerate. In a warm tank it stretches, loses the tight rosette form and struggles — this is the requirement most often missed.
• Plant rosettes an inch or two apart and let them spread. Each plant throws side shoots from the base rather than growing upward.
• Expect melt on arrival. It reacts to a change of conditions by dropping leaves, then rebuilds from the centre. Leave it alone for two to three weeks.
• Feed at the roots. In inert gravel the leaves come in smaller and flatter, losing the curl that makes it worth buying.
• Also available as sterile Downoi Vitro Culture, or the rare White Albino form.

Want to go deeper? Read our complete Pogostemon Care Guide.

Notes

• Pogostemon helferi may experience temporary melt or leaf loss when transitioning to a new environment. Ensure stable lighting, CO₂, and nutrients for successful adaptation and compact form.
• Never release aquarium plants into natural waterways.

Shipping info

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