Eriocaulon sp Vietnam
Plant Profile
Unlike most Eriocaulon species that grow in low, sea-urchin-like rosettes, Eriocaulon sp. 'Vietnam' is a distinct stem-forming plant native to Southeast Asia. It produces tall upright stems covered in long, narrow, pale green to whitish needle-like leaves that branch into dense lateral shoots over time. Maxing out around 8 inches tall, its fine foliage creates a sea-anemone texture that works well as a midground focal point or background accent in Dutch style aquascapes. It requires specialized care, favoring soft, acidic water, high-intensity lighting, rich substrate, and continuous CO2 injection to maintain steady growth without melting.
Key Features & Notes
- Pale green needle-like foliage forms dense, bushy stem clusters for high visual contrast.
- Unique upright stem form among Eriocaulon species, making it ideal for Dutch style layouts.
Care & Planting Instructions
- Prep the plant by removing it from the pot and clearing all rockwool from the roots.
- Plant individual stems deeply into an active, acidic aquarium soil using fine-tipped tweezers, making sure stems are spaced slightly apart to allow light to reach lower foliage.
- Provide high-intensity lighting and continuous CO2 injection to maintain healthy growth and prevent lower leaf rot.
- Requires soft water parameters and balanced dosing of macro and micro nutrients, including nitrate, phosphate, and iron.
- Propagate by carefully cutting upper stem tips (around 2 inches long) with sharp scissors and replanting them into the substrate; avoid over-pruning as stems can be sensitive to frequent trimming.
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 | Eriocaulon sp. 'Vietnam' |
| Common Name(s) | Vietnamese Eriocaulon, Eriocaulon Vietnam |
| Family | Eriocaulaceae |
| Plant Type / Taxonomy | Stem plant / Regional Species Variant |
| Care Difficulty | Difficult / Advanced |
| Light Requirement | High |
| CO2 Requirement | Required (High) |
| Placement / Usage | Midground / Background Accent |
| Height / Size | 4–8 inches |
| Growth Rate | Moderate |
| Water Parameters | pH 4.5–6.5 (Soft, acidic water) |
| Propagation Method | Stem tip cuttings and side shoot division |
| Origin | Southeast Asia (Vietnam) |
Frequently Asked Questions
1. Why is Eriocaulon sp. 'Vietnam' considered a difficult plant to keep?
It requires strict water parameters, including soft, acidic water (low GH/KH), high light levels, rich active aquasoil, and pressurized CO2. Without these ideal conditions, the lower stems can melt or stall in growth.
2. How does Eriocaulon sp. 'Vietnam' differ from other Eriocaulon species?
While most Eriocaulon plants grow as low, rounded rosettes, 'Vietnam' forms true vertical stems with bushy side branching, making it look and handle more like a fine-leaved stem plant.
3. How should I trim and propagate Eriocaulon sp. 'Vietnam'?
Use clean, sharp aquascaping scissors to take tip cuttings about 2 inches long from healthy stems, then replant the cuttings into rich soil. Avoid aggressive or frequent pruning, as stems take time to recover from heavy trims.