Rotala H'ra养护指南
Rotala rotundifolia 'H'ra' · Lythraceae
Rotala H'ra (Rotala rotundifolia 'H'ra') 是一种水草。 隶属于Lythraceae科。 原产于A trade form of Rotala rotundifolia collected near the hamlet of H'ra, Gia Lai, in Vietnam's Central Highlands; the species grows in rice paddies and marshes across South and East Asia。 生长需要medium to high光照。 适宜水温：22°C – 28°C。 pH范围：6.0 – 7.5。 养护难度：Moderate。 生长速度：fast。
如何养护Rotala H'ra？
| 光照 | Medium to High (medium keeps it alive; strong light is what brings out the orange-red — it stays mostly green under weak light) |
|---|---|
| CO₂ | Recommended (sources range from medium CO₂ demand to “mandatory for colour”) |
| 水温 | 22°C – 28°C |
| pH | 6.0 – 7.5 |
| 造景位置 | Midground in dense bushes; kept low it can form an orange cushion toward the foreground |
| 生长速度 | Fast |
| 养护难度 | Moderate |
| 科属 | Lythraceae |
如何修剪与繁殖Rotala H'ra？
Top the stems or side shoots once they reach the height you want; cutting just above a node makes the stem branch into a denser bush. Growth arches toward horizontal, so trim often so the canopy does not shade the base. Propagate by replanting the cut tops and side shoots (strip the lowest leaves and set stems individually a few cm apart).
Rotala H'ra有哪些常见问题？
Bare lower stems from too little light at the base (crowding or shading by taller plants); stays green or pale from low light, CO₂ or iron; stems melt after planting from unstable water or the switch from farm-grown emersed to submersed growth; stunted tips and yellow or dead leaves from low nitrate, iron/trace shortage or low CO₂.
如何解决Rotala H'ra的常见问题？
Thin and space the stems and top them more often; raise light and add CO₂ plus trace/iron dosing; keep parameters stable and accept some loss of emersed leaves while submersed growth forms; correct fertiliser and CO₂. Aquasoil or root tabs help on an inert substrate.
Rotala H'ra原产于哪里？
A trade form of Rotala rotundifolia collected near the hamlet of H'ra, Gia Lai, in Vietnam's Central Highlands; the species grows in rice paddies and marshes across South and East Asia
购买Rotala H'ra前需要了解什么？
The species Rotala rotundifolia is invasive in southern Florida (FLEPPC Category II): it escaped from the aquarium and water-garden trade, forms dense mats and spreads from fragments. Never discard trimmings into natural waters.
参考来源
- Rotala rotundifolia (Buch.-Ham. ex Roxb.) Koehne - World Checklist of Vascular Plants (WCVP, Royal Botanic Gardens Kew) via GBIF — Royal Botanic Gardens, Kew / GBIF
- Rotala rotundifolia "H'Ra" ("Gia Lai") — Flowgrow Aquatic Plant Database
- Rotala rotundifolia 'H'ra' — Tropica Aquarium Plants
- Rotala H'Ra - Aquarium Stem Plant — Buce Plant
- Care Guide: Rotala H'ra — Hygronature
- Rotala Rotundifolia Care Guide — Shrimp and Snail Breeder
- Rotala rotundifolia — Tropica Aquarium Plants
- SS-AGR-376/AG381: Rotala: A New Aquatic Invader in Southern Florida — UF/IFAS Extension
养护信息已于 2026-09-23 与这些来源核对。