A very fast grower, Hydrocotyle verticillata (Water Pennywort) is a charming trailing perennial with round, penny-shaped leaves, 1-2 in. across (2-5 cm), that attach to their stems from the center of the leaves. The long, slender stems can grow up to 10 in. long (25 cm). Inconspicuous white umbel flowers are borne on shorter stalks below the leaves from early summer to early fall. Native to South and North America as well as the West Indies, Water Pennywort can be found along streams, in the shallow water or marshes, and on low, muddy ground. Popular as a foreground plant, Water Pennywort can be used as a marginal aquatic and is suitable for garden ponds. A vigorous performer, it quickly hides the pond edge. The seeds are used occasionally as food by waterfowl. Undemanding, Water Pennywort can be used in aquaria with a good substrate, and at least moderate light.

• Grows up to 6-12 in. tall (15-30 cm) and 12-24 in. wide (30-60 cm).
• Performs best in full sun to light shade in soft, slightly acidic water up to 2 in. (5 cm) below the water surface.
• No serious pest or disease issues.
• Propagate by cuttings of rooted stolons.
• Native to South and North America and the West Indies.