Sagittaria sagittifolia (Broadleaf Arrowhead) is a small perennial aquatic or bog plant native to temperate regions of Europe and Asia. This small plant is typically no more than 2-5 ft in height with leaves that have an arrow-shape. It produces profuse white and off-white flowers in the summer, which can lasts for weeks. It is best placed in full sun and van be grown in USDA zones 5-9.
In some areas, Sagittaria sagittifolia has been used as an ethnomedical plant. The rhizome of Sagittaria sagittifolia are used by the North American Indians and the Chinese as starchy foods, as are some other species. As such, it is an important plant in many cultures, both for its beauty and its practical uses.
Sagittaria sagittifolia 'Flore Pleno' is a double flowering arrowhead is very beautiful and hard to get.
The plants grows very fast in tropical climate so it gets invasive.