I plant bulbs with my daylilies because they hide the leaves after they bloom. Asiatic Lilies are in bloom before the daylilies but the leave are up., LA lilies bloom next and the n the Oriental Lilies. All the lilies bloom before or after the daylilies have bloomed.
I sprinkle Zinnia seeds around the daylilies, Sedum the tall Sedum will bloom from late Aug - Sept.
Geranium Roanne Blooms beautiful blue flowers from June to Fall it will weave around the plants.