The Black Eyed Susan flower, also known as Rudbeckia, resembles the classic daisy with different darker shades and long petals moving out from the center. Black-Eyed Susan is a biennial/perennial flower that grows 1 to 3 feet high. Dark, cylindrical centers with bright yellow, drooping outer petals. The Black-Eyed Susan is a native flower that prefers full sun, but can tolerate shaded areas. When planted in a location that provides more shade, this flower can grow but it will not produce large blooms and the plants may be long and leggy. This flower can flourish in almost any kind of soil as long as it is well-drained. It is an easily grown flower that will often reseed itself if the seeds make direct contact with the soil. The Black-Eyed Susan is very drought resistant and makes an exceptional cut flower.