Whorled Pennywort

Whorled Pennywort

Whorled Pennywort, botanically Hydrocotyle verticillata, is a distinctive aquatic plant from North and South America producing unusually round leaves arranged in characteristic whorls around upright stems — a geometric, architectural leaf arrangement found in virtually no other commonly kept aquarium plant. The circular leaves and their distinctive whorled arrangement create a uniquely ordered, almost sculptural quality in the foreground that rewards close observation with its geometric botanical detail.

Care tip: Whorled Pennywort grows best in moderate lighting with CO₂ recommended. Maintain temperatures of 70–82°F and pH 6.0–7.5. Regular liquid fertilization supports healthy growth.

As a creeping, low-growing plant, Whorled Pennywort spreads horizontally across the substrate, rooting at nodes along its creeping stems and gradually colonizing the foreground space with its distinctive circular leaves. Regular trimming maintains a compact, dense planting and encourages fresh new growth with the most clearly defined whorled arrangement. Left to grow freely, it will spread across the foreground creating unusual circular leaf patterns wherever it roams.

This moderate plant grows best in moderate lighting. CO₂ supplementation is recommended for compact, vigorous growth. Temperatures between 70 and 82°F and a pH of 6.0 to 7.5 provide comfortable conditions. Regular fertilization supports the fast growth rate characteristic of the Hydrocotyle genus. Consistent trimming is essential for maintaining the compact, attractive presentation this plant is capable of producing.

In the aquascape, Whorled Pennywort creates a genuinely unusual foreground of circular whorled leaves that is unlike any other commonly available aquarium plant. The geometric arrangement of round leaves around upright stems creates an almost pattern-like visual quality that suits artistic and experimental aquascape compositions. It is particularly striking as a contrast element among more organic, irregularly shaped plants where its geometric precision stands out clearly.

Whorled Pennywort is a plant for aquarists who appreciate geometric beauty and unusual botanical character in their foreground compositions. Its distinctive whorled circular leaves and creeping growth create a foreground effect that is genuinely unlike anything else in the freshwater plant hobby.

Care & Specifications