Happy returns daylilys is know. To be one of the longest blooming daylilys that exist! The beautiful, bright yellow flowers they provide can be seen from a distance and will catch your attention easily. They continue to bloom over and over even when other daylilys have stopped blooming for the year. This yellow happy returns daylily is easy to grow like most daylilys are for all gardeners and they like full sun or mostly full sun for the best blooms.