A good friend of ours who is a day lily savant told us that we had to have this plant. So adamant was he that he sent us a good sized clump. Holy cow was he right on. This is a large elegant perennial with elongated light yellow flowers that have a POWERFUL sweet citrus blossom aroma. The scent ramps up greatly at night and can be detected many feet away. Tall growing species as the flower scapes rise to almost 5′ tall. Each one holds multiple flowers. They close a little during the day but in the afternoon they slowly yawn open and POW! Here comes the perfume. Grassy foliage rises to about 2′ and a clump gets very large in rich, well drained soil with ample summer moisture. Full sun to very light shade. Give this big guy room to shine. Blooms for us July to September. Completely deciduous in winter. Big thanks Duane.