Butomus umbellatus is a rhizomatous perennial aquatic plant, native to Europe and Asia, now widespread also in the American continent. This plant, also known as flowering rush, turns out to be quite slow growing and has long dark green, pointed and ribbon-like leaves. In summer, Butomus umbellatus produces an umbrella inflorescence, which blooms at the axilla of two oval bracts, at the end of a long stem. The flowers of this genus of plants are small and pink in color. Usually this plant remains smaller than 1350-170 cm. In late summer, it produces small capsules containing dozens of seeds.
To get the best results from this species, it is good to know that the flowering rush likes sunny positions, but also adapts to partial shade; does not fear the cold, even in the coldest winters, usually instead fears the torrid heat of summer, therefore in places characterized by very hot summer it is necessary to plant it in partial shade, to avoid that direct sun and high temperatures can ruin completely the plant.