Saururus chinensis aka Asian Lizards Tail

Saururus chinensis, or lizard's tail, belongs to the Saururaceae family. This leafy perennial grows at the edges of water. Its native range spans China, Korea, Japan, and parts of southern Asia. It also occurs in India, Vietnam, and the Philippines. Wild plants grow along streams and rivers, in marshes and wet meadows. They also grow in damp woods, ditches, and field margins.

In water gardens, plants often reach 1–1.5 feet [0.30–0.46 m] tall. Wild plants reach 2–3 feet [0.61–0.91 m]. Their spread can reach about 3 feet [0.91 m]. Creeping rhizomes let them form colonies when left unchecked. The leaves fall at the end of the growing season. Green leaves have a thin, papery feel and clear ribs. Their shape ranges from oval to narrow and pointed. Each leaf has a heart-shaped base and a pointed tip. Some upper leaves bear white patches, adding contrast above the green growth.

Small white to yellowish-white flowers appear from June to August. The flowers have a scent and add interest to pond plantings. The leaves also have a scent. This plant suits bog gardens, pond edges, tubs, and garden pools. It can also grow in rain gardens where soils stay wet. Its pale upper leaves and flowers provide the main display. Give its spreading roots room, or use a container to limit them.

Grow it in full sun or part shade for best results. It can also flower in full shade. It needs wet ground and grows well in shallow water. In pools, place containers beneath up to 0.5 feet [0.15 m] of water. Sandy or muddy pond margins also suit its roots. Missouri Botanical Garden lists USDA zones 4–9 and low upkeep needs. It reports no major pest or disease problems. The plant also tolerates deer, rabbits, and deep shade. Divide clumps in spring, or raise new plants from seed.

Plants For A Future lists no known food uses. It also reports no known hazards, though this does not establish safety for eating. That source records traditional uses of the roots, flowers, leaves, and whole plant. These include treatments for swelling, fever, urinary complaints, and skin problems. Such records describe medicinal use, not proof of safe or effective treatment.