This little gem is Iris pumila 'Brassie.' It blooms in early spring and grows a mere four to five inches tall. I only have one of this particular variety, but think it would make a nice groundcover around later-emerging perennials.
This bright blue flower is Iris reticulata. It grows from a bulb planted in the fall that then blooms early the following spring. The leaves then elongate and look a little messy before dying back. It's a great little plant coming at a time when its color echoes that of the sky on a clear spring day. Remember or mark where it is planted so you don't forget and plant something over it later in the season.