Blue tansy (Phacelia tanacetifolia), is member of the Boraginaceae family. The plant is commonly used as a cover crop or as green manure. Because of its extended flowering period, it is a very important food source for pollinators. It has a concentrated nectar, which is very much favored by honeybees and beekeepers alike. Its Hungarian name literally translates to "Honey pouring herb" or "honey blasting weed". It can be planted as an ornamental too.