Great Water Dock (Rumex Britannica) is a perennial herb in the Polygonaceae family with moderate care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 3-8. This plant is safe for cats and dogs.

Rumex britannica is a perennial herbaceous plant native to North America, commonly found in wetland habitats such as marshes, stream banks, and wet ditches.