Daylilies are so-called because each new flower opens in the morning, blooms all day and dies when darkness arrives. Species varieties of daylilies bloom for a short season during late spring and early summer. Ever-blooming daylilies were developed in the 1970s to produce their flowers over a longer season. Because of their ease of cultivation and vigorous growth habits, they are widely planted as landscape features on public lands such as roadsides and parks.
'Apricot Sparkles' is so-named because it produces particles on its petals which shine like diamonds, a phenomenon which is known as "diamond dusting." This variety begins to bloom in mid-spring and continues until killed by frost. The 4-inch-wide flowers are deep apricot.
'Just Plum Happy'
'Just Plum Happy' is a newer cultivar that was developed by crossing existing ever-blooming daylilies. It produces 6-inch rose-pink flowers with a wide purple eye. It grows about 1 ½ to 2 feet high, blooming from mid-spring until late summer or early fall.
'Stella D'Oro' was the first-ever blooming daylily developed and is the standard by which all other daylily cultivars are judged. It has 2 ½-inch wide, bright yellowish-gold flowers that bloom from May through June and re-bloom again throughout the growing season until killed by frost. This variety grows about one foot tall and one foot wide.
'Black Eyed Stella'
A 2-foot-tall daylily, 'Black Eyed Stella' is a golden yellow flower with a burgundy center eye. The flowers are about 2 ½ inches wide and bloom from late May until killed by frost in autumn.