Perennial Pink Lily of the Valley blooms in the Spring during the month of May in the Northeast. It then provides a lush green ground cover during the rest of the summer.
This photo, though pretty, doesn't give you the opportunity to smell the blooms, which is the most wonderful thing about this pretty perennial. Each year as far as I can recall the flowers have bloomed in May, and in my part of the country, the Northeast USA, it seems to happen right around May 10th. At this update in May of 2017, the plants have bloomed earlier, everything is earlier this year.
I hope you will enjoy learning more about this easy to grow shade-loving perennial, and you may find some plants to buy if Pink Lily of the Valley isn't available in your area.