Water Horsetail (Equisetum Fluviatile) is a perennial fern in the Equisetaceae family with easy care difficulty. It requires aquatic watering and full sun or partial shade light in USDA hardiness zones 3-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

Equisetum fluviatile is a perennial, aquatic or semi-aquatic fern ally known for its hollow, jointed stems and preference for wet habitats.