Once the plant is established it will grow for years without a lot of attention. As the plant grows it will produce many other plants that can be separated and reset in new beds. There are two types grown for flowers. They are the diploid and tetraploid. Tetraploids came into being in the late 1940s.
Today there are hundreds of the tetraploids available for planting in the landscape.
If you are looking for a perennial that requires little care, plant daylilies. It produces an abundance of small yellow flowers with a dark brown center. The plant makes a good ground cover in full sun or partial shade. The flowers are very obvious over the light green foliage. This plant makes a great show in large beds or in front of a dark green hedge.