刺蕊草 Downoi (Pogostemon helferi)养护指南
Pogostemon helferi · Lamiaceae
刺蕊草 Downoi (Pogostemon helferi) (Pogostemon helferi) 是一种水草。 隶属于Lamiaceae科。 原产于North-east India to Indo-China; aquarium stock traces to western Thailand (Kanchanaburi) on the Myanmar border。 生长需要medium to high光照。 适宜水温：20°C – 28°C。 pH范围：5.0 – 7.5。 养护难度：中等。 生长速度：慢至中等。
如何养护刺蕊草 Downoi (Pogostemon helferi)？
| 光照 | Medium to High (about 0.5 – 1 W/L; weak light gives taller, looser, yellowish growth, strong light compact 5–8 cm rosettes) |
|---|---|
| CO₂ | 建议添加 |
| 水温 | 20°C – 28°C |
| pH | 5.0 – 7.5 |
| 造景位置 | Foreground, midground in nano tanks, or tied onto stone or wood |
| 生长速度 | 慢至中等 |
| 养护难度 | 中等 |
| 科属 | Lamiaceae |
如何修剪与繁殖刺蕊草 Downoi (Pogostemon helferi)？
Remove whole older shoots rather than shearing the top, so light reaches the lower growth. Propagate by splitting side shoots or plantlets off the clump, or by stem cuttings taken below a node.
刺蕊草 Downoi (Pogostemon helferi)有哪些常见问题？
Pale yellow new leaves from iron shortage (or too little light); long internodes and loose growth in weak light; shoots die back after being bruised during handling.
如何解决刺蕊草 Downoi (Pogostemon helferi)的常见问题？
Dose an iron-containing liquid fertiliser and raise the light; before planting remove old leaves and roots, hold it by the base and plant with tweezers.
刺蕊草 Downoi (Pogostemon helferi)原产于哪里？
North-east India to Indo-China; aquarium stock traces to western Thailand (Kanchanaburi) on the Myanmar border · 原生生境产区：South-east Asia。
购买刺蕊草 Downoi (Pogostemon helferi)前需要了解什么？
Wild populations in Thailand have declined through collection for the aquarium trade — prefer nursery-grown or tissue-culture plants.
参考来源
- Pogostemon helferi (Hook.f.) Press — Kew – Plants of the World Online
- Pogostemon helferi — Wikipedia
- Pogostemon helferi – plant details — Tropica
- Pogostemon helferi (article) — Tropica
- Pogostemon helferi – Downoi — Flowgrow aquatic plant database
养护信息已于 2026-09-23 与这些来源核对。