红丁香 (Ludwigia repens)养护指南
Ludwigia repens (incl. 'Rubin', possibly a hybrid) · Onagraceae
红丁香 (Ludwigia repens) (Ludwigia repens (incl. 'Rubin', possibly a hybrid)) 是一种水草。 隶属于Onagraceae科。 原产于Southern USA through Mexico to El Salvador, plus the Caribbean。 生长需要medium光照。 适宜水温：19°C – 28°C。 pH范围：5.0 – 7.5。 养护难度：容易。 生长速度：快。
如何养护红丁香 (Ludwigia repens)？
| 光照 | Medium (grows from about 0.4 W/L; stronger light only deepens the red) |
|---|---|
| CO₂ | Optional (helpful) |
| 水温 | 19°C – 28°C |
| pH | 5.0 – 7.5 |
| 造景位置 | Background or midground stem group |
| 生长速度 | 快 |
| 养护难度 | 容易 |
| 科属 | Onagraceae |
如何修剪与繁殖红丁香 (Ludwigia repens)？
剪顶并补种健康的顶芽；下方留下的老茎会发侧芽。
红丁香 (Ludwigia repens)有哪些常见问题？
Lower leaves drop when light does not reach the lower stem; colour stays green in weak light or with high nitrate.
如何解决红丁香 (Ludwigia repens)的常见问题？
Stronger light and trim so light reaches the base; keep nitrate moderate and dose iron.
红丁香 (Ludwigia repens)原产于哪里？
Southern USA through Mexico to El Salvador, plus the Caribbean (Cuba, Hispaniola, Jamaica, Puerto Rico, the Bahamas) · 原生生境产区：North America。
购买红丁香 (Ludwigia repens)前需要了解什么？
Naturalised outside its range (e.g. the Lane Cove River, Sydney), and regulated as a water weed that can clog waterways in New South Wales, Australia. Never release aquarium plants into waterways.
参考来源
- Ludwigia repens J.R.Forst. — Kew – Plants of the World Online
- Creeping Primrose-willow (Ludwigia repens) Ecological Risk Screening Summary — U.S. Fish & Wildlife Service (2021)
- Ludwigia repens 'Rubin' – plant details — Tropica
- Ludwigia repens — Flowgrow aquatic plant database
- Red ludwigia (Ludwigia repens) — NSW WeedWise (NSW DPI)
养护信息已于 2026-09-23 与这些来源核对。