Source: Wikimedia Commons
Hemianthus callitrichoides
AdvancedHemianthus callitrichoides
One of the worlds smallest aquatic plants. Tiny leaves create a dense beautiful green carpet. Advanced foreground plant.
About
Hemianthus callitrichoides — commonly abbreviated 'HC' and known in the trade as 'Cuba' — is a semi-aquatic plant in the family Linderniaceae endemic to the West Indies, with native populations on the Bahamas, Cuba, Hispaniola, Jamaica, and Puerto Rico. Among the smallest flowering plants on Earth, individual leaves measure approximately 1 mm in diameter. In aquascaping it is revered as the ultimate foreground carpeting species: its micro-leaves interlace to form a seamless green lawn of extraordinary density, a centerpiece of international-level competition layouts. High light and pressurized CO2 injection are absolute requirements — without both, the carpet progressively deteriorates. Establishing the initial carpet is the most challenging phase, demanding careful attention to temperature stability and balanced fertilization. Its combination of supreme beauty and technical difficulty makes it the pinnacle of foreground plant cultivation.
Source: Wikipedia (CC BY-SA 4.0)
Basic Info
Origin
West Indies (The Bahamas, Cuba, Hispaniola, Jamaica, and Puerto Rico)
Lifespan
Perennial
Size
1-3cm
Temperature
22〜26℃
Watering & Fertilizer
Root tabs, CO2
Growing Tips
Lighting
Strong light essential
CO2
CO2 injection essential
Substrate
Powder type soil recommended
Planting
Plant one by one carefully with tweezers
Notes
Tends to float — patience needed until rooted
Hemianthus callitrichoides FAQ
QWhat is the growing difficulty level for Hemianthus callitrichoides?
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 Hemianthus callitrichoides?
The ideal temperature for Hemianthus callitrichoides is 22〜26℃. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Hemianthus callitrichoides?
The average lifespan of Hemianthus callitrichoides is Perennial. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Hemianthus callitrichoides get?
The mature size of Hemianthus callitrichoides is 1-3cm. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Hemianthus callitrichoides?
Hemianthus callitrichoides: watering & fertilizer — Root tabs, CO2. Aim for appropriate frequency and amount.
QWhat is the typical price for Hemianthus callitrichoides?
The price of Hemianthus callitrichoides varies significantly by variety, characteristics, size, and lineage. Please check ボタちょく's price guide for the latest market information.
Last updated: June 24, 2026
References & Sources
Edited & verified by: BoTachoku 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: 環境省 特定外来生物等一覧(外来生物法) / CITES Appendix II 植物掲載分類群(科・属レベル)
Regulations may change. Always verify the latest information with the relevant authorities.
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