Pogostemon erectus (P. deccanensis) care guide
Pogostemon deccanensis (sold as P. erectus) · Lamiaceae
Pogostemon erectus (P. deccanensis) (Pogostemon deccanensis (sold as P. erectus)) is an aquatic plant. It belongs to the Lamiaceae family. It is native to India (river margins and seasonally flooded ground). The plant sold as “P. erectus” since about 2010 was identified as P. deccanensis by Kasselmann (2019); true P. erectus is a separate species that is hard to keep submersed — trade labels are unreliable. It needs medium to high light. Water temperature: 22°C – 28°C. pH: 6.0 – 7.5. Care difficulty: Moderate. Growth rate: moderate.
How do you care for Pogostemon erectus (P. deccanensis)?
| Light | Medium to High (weak light stretches the stems and thins the needle whorls; strong light keeps it compact) |
|---|---|
| CO₂ | Recommended (sources range from medium demand to 20 – 30 ppm) |
| Temperature | 22°C – 28°C |
| pH | 6.0 – 7.5 |
| Placement | Midground to background, planted in groups like a stand of little conifers |
| Growth | Moderate |
| Difficulty | Moderate |
| Family | Lamiaceae |
How do you trim and propagate Pogostemon erectus (P. deccanensis)?
Needs frequent pruning: top stems with sharp straight scissors at the height you want; replant the tops to thicken the group, or cut and replant the whole group for the cleanest look. Tops root quickly (about 5 – 10 days) and the cut stem pushes side shoots — strip the lowest 2 – 3 whorls and plant 2 – 3 cm deep, 2 – 3 cm apart.
What problems affect Pogostemon erectus (P. deccanensis)?
Leggy, sparse stems from too little light; lower leaves yellowing or dropping from crowding/shade or nitrogen shortage; stunted, curled tips from fluctuating CO₂ or low calcium; stems melting after sudden parameter changes or poor circulation at the base.
How do you fix Pogostemon erectus (P. deccanensis) problems?
Raise light; thin and space stems and check nitrate; keep CO₂ steady and raise GH if the water is very soft; keep parameters stable and improve flow. It is a strong root feeder — use rich aquasoil plus regular complete liquid fertiliser.
Where does Pogostemon erectus (P. deccanensis) come from?
India (river margins and seasonally flooded ground). The plant sold as “P. erectus” since about 2010 was identified as P. deccanensis by Kasselmann (2019); true P. erectus is a separate species that is hard to keep submersed — trade labels are unreliable
Sources
- Pogostemon deccanensis (Panigrahi) Press - World Checklist of Vascular Plants (WCVP, Royal Botanic Gardens Kew) via GBIF — Royal Botanic Gardens, Kew / GBIF
- Pogostemon erectus (Dalzell) Kuntze - World Checklist of Vascular Plants (WCVP, Royal Botanic Gardens Kew) via GBIF — Royal Botanic Gardens, Kew / GBIF
- Pogostemon deccanensis — Tropica Aquarium Plants
- Pogostemon erectus — Flowgrow Aquatic Plant Database
- Pogostemon Erectus Care Guide — Gensou Premium Aquascaping
- Pogostemon Erectus Tissue Culture — Buce Plant
- Care Guide: Pogostemon Erectus — Hygronature
Care details checked against these sources on 2026-09-23.
Which aquascapes and tanks use Pogostemon erectus (P. deccanensis)?
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