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Eriocaulon aquaticum
AdvancedEriocaulon aquaticum
Sea urchin-like radial leaves make this a striking high-difficulty plant. Demands soft water, low pH, high light, and CO2. Small rosette ideal for foreground. Popular among enthusiasts.
About
Eriocaulon aquaticum is a rosette-forming aquatic plant in the family Eriocaulaceae, native to nutrient-poor lakes in North America and Europe. Slender linear leaves radiate outward, and established clumps take on a distinctive pineapple-like form. It is one of the more challenging pipeworts to grow, requiring strong lighting, CO2 injection, abundant substrate nutrients, and clean soft water. Because it favors nutrient uptake through the roots, a nutrient-rich soil substrate suits it. Being sensitive to environmental change and poor water quality and prone to melting, it demands stable management and is suited to advanced hobbyists. It can be propagated by dividing the daughter plants it produces. Scattered in the midground, it has a striking presence. It prefers soft, slightly acidic water.
Size of the Eriocaulon aquaticum
The Eriocaulon aquaticum grows to 3-8cm.
Temperature & humidity for the Eriocaulon aquaticum
The ideal temperature for the Eriocaulon aquaticum is 20〜26℃.
Basic Info
Origin
North America and Europe
Size
3-8cm
Temperature
20〜26℃
Watering & Fertilizer
CO2 required + liquid fert + root tabs
Growing Tips
Lighting
High light essential. Metal halide or high-power LED
CO2 & Fertilizer
CO2 injection is essential. It prefers to feed through its roots, so rely mainly on substrate fertiliser with liquid fertiliser as a supplement.
Water
Ultra-soft water, pH 5.0-6.5. Keep TDS low
Water Temperature & Quality
Aim for a water temperature of 20-26°C. It is sensitive to deteriorating water and melts easily, so stable care that keeps the soft water clean is essential.
Substrate
Acidic soil essential. Won't grow in gravel
Notes
Extremely sensitive to changes. Maintain stable environment
Eriocaulon aquaticum FAQ
QWhat is the growing difficulty level for Eriocaulon aquaticum?
Advanced. A variety suitable for advanced growers. Requires advanced cultivation techniques and specialized equipment, with careful environmental adjustments needed.
QWhat is the ideal temperature for Eriocaulon aquaticum?
The ideal temperature for Eriocaulon aquaticum is 20〜26℃. Avoid sudden temperature changes and maintain a stable environment.
QHow large does Eriocaulon aquaticum get?
The mature size of Eriocaulon aquaticum is 3-8cm. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Eriocaulon aquaticum?
Eriocaulon aquaticum: watering & fertilizer — CO2 required + liquid fert + root tabs. Aim for appropriate frequency and amount.
QWhat is the typical price for Eriocaulon aquaticum?
The price of Eriocaulon aquaticum varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: September 17, 2026
References & Sources
Edited & verified by: GrowerDirect Editorial Team
The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.
Taxonomy & Authority
Regulations & Conservation Status
Sources: Ministry of the Environment Designated Invasive Species List (Invasive Species Act) / CITES Appendix II listed plant taxa (family and genus level)
Regulations may change. Always verify the latest information with the relevant authorities.
Related Species
Find listings for this species
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