Hemerocallis are more commonly known as day lilies. A herbaceous perennial they are drought tolerant and easy to grow.
Although not a lily the flowers are large trumpet-like flowers. It is called day lily because the individual flowers only last a short time. However, they have lots of flowers so the flowering season lasts for several weeks. They come in a variety of colours although tend to be seen in reds and golds. As the clumps get bigger they can be divided and the bit removed planted somewhere else.
As it is a perennial it will die back in Winter to regrow in Spring.
They like to grow in sun or partial shade and grow to about 45cm to 60cm depending on variety chosen.