Hygrophila Angustifolia Rubra
Plant Profile
If your background looks flat, Hygrophila Angustifolia Rubra is here to flip the script. Native to the tropical waterways of Southeast Asia, this fast-growing, beginner-friendly aquatic stem plant grows long, narrow, willow-like leaves that shift through a gradient of olive-green to rich reddish-copper under moderate to high lighting. Because of its impressive height potential that easily reaches 6 to 12+ inches, it serves as an outstanding background plant that quickly absorbs excess nutrients from the water column, helping to keep algae at bay in newly established or mature aquariums alike.
Key Features & Benefits
- Long, narrow willow-like foliage blushes with warm reddish-copper tones under sufficient light.
- Fast growth acts as a natural nutrient sponge to keep water clean and suppress algae.
- Hardy and adaptable across a wide range of temperatures and parameters.
Care & Planting Instructions
-
Remove lead weight and remove cotton wrap (or foam) surrounding the base, then strip the lower inch of foliage so bare stems anchor cleanly into soil without rotting.
- Use fine-tip pinsettes to push individual stems 1 to 2 inches into substrate, spacing them slightly apart so light reaches lower leaves.
- Provide moderate to high lighting; while adaptable without pressurized CO2, supplying CO2 and regular liquid fertilizer dosing will enhance growth rate, leaf size, and reddish coloration. See our guide to growing red aquarium plants.
- Maintain stable water parameters and avoid drastic environmental shifts to ensure healthy stem transition.
- Trim stem tops with straight scissors once they reach the desired height to encourage dense side-branching. Read our trimming & propagation guide for details.
Quick Facts
Listed information should be treated as general guidelines only. Team Buce Plant encourages you to do thorough research to ensure healthy growth!
| Attribute | Specification |
|---|---|
| Scientific Name | Hygrophila angustifolia 'Rubra' |
| Common Name(s) | Hygrophila Angustifolia Rubra, Willow Leaf Hygrophila Red |
| Family | Acanthaceae |
| Plant Type / Taxonomy | Stem Plant |
| Care Difficulty | Easy |
| Light Requirement | Moderate to High |
| CO2 Requirement | Optional / Recommended (Promotes faster growth and red tones) |
| Placement / Usage | Background / Large Aquariums |
| Height / Size | 6–12”+ |
| Growth Rate | Fast |
| Water Parameters | pH 5.0–8.0 |
| Propagation Method | Cuttings (Cut main stem and replant into substrate) |
| Origin | Southeast Asia |
Frequently Asked Questions
1. Why are the lower leaves falling off my stem plants?
Lower leaf loss (leggy stems) usually occurs when lighting cannot reach the bottom of the plant due to overcrowding or shading from larger plants. Spacing individual stems slightly apart during initial planting and maintaining strong light penetration will keep lower leaves healthy.
2. How do I make Hygrophila Angustifolia Rubra turn more red?
Achieving richer reddish-copper tones requires increasing light intensity and providing trace micronutrients, especially iron. Pressurized CO2 injection also encourages stronger pigmentation and robust leaf development.
3. Can I grow this plant in a low-tech tank without CO2?
Yes! Hygrophila Angustifolia Rubra is a very hardy plant that can thrive in low-tech setups without CO2, though it will grow at a more moderate pace and remain closer to an olive-green hue.