Daylilies (Hemerocallis sp.) are perennials for summer gardens. They grow in almost any landscape, need very little care and flower profusely throughout the warm months. Their genus, Hemerocallis, comes from the Greek words meaning beauty and day. Each daylily flower lasts only one day, but each plant has many buds on its stalk, making it one of the hardest-working plants you'll find. Their blooms come in yellow, red, pink, purple, scarlet or melon. There are thousands of varieties of daylilies, all of which bloom quite well. But some varieties will bloom longer than others.
The August Pioneer daylily is an heirloom that reaches 40 inches tall. August Pioneer produces 4-inch, trumpet-shaped apricot blooms that are slightly fragrant. It will flower for more than two months, and it multiplies rapidly. It is hardy in USDA zones 3 to 9. The August Pioneer is tolerant of most soils, but will grow best in soil enriched with organic matter such as compost.
The Clementella daylily is daughter of the ubiquitous Stella De Oro. It reaches 20 inches tall. Clementella produces 3-inch, apricot-orange flowers. It has two long periods of bloom, and it multiplies extremely rapidly. According to Bloomingfield Farms, it will produce 70 percent more flowering scapes than its parent, Stella De Oro. The Clementella prefers full sun and well-drained, rich soil. It grows in USDA zones 3 to 9.
The Princess Irene daylily reaches 24 inches tall. Its star-shaped, slightly ruffled blooms are bright orange and up to 5 inches wide. It will flower for more than two months (August and September), until the first hard frost of fall. This tough daylily can take extremely hot weather and grows best in USDA zones 3 to 10. Princess Irene needs full sun and rich, well-drained soil.
Stella de Oro
The Stella de Oro is the grande dame, with the longest blooming period of any daylily. It will bloom continuously from spring until frost. Its buttercup yellow, ruffled flowers bloom on 12-inch stems, with the plant reaching 24 inches. The Stella de Oro grows in USDA zones 3 to 9. While it prefers full sun, it can take partial shade. It is very drought tolerant and will tolerate almost any soil.
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