Genus: Daylily

Hemerocallis

Photo/Illustration: 
Courtesy of Bluestone Perennials
Daylily (Hemerocallis)
hem-er-oh-KAL-iss
Liliaceae
This enormous genus includes tens of thousands of cultivars from only about a dozen species. These plants are noted for their colorful, exuberant blooms in a wide range of colors and shapes from spring through summer.
Noteworthy characteristics:  A tough plant that is easy to grow and suited to a wide range of sites.
Care:  Grow in moist, fertile soil in full sun. (Will take part shade with diminshed flowering resulting.) Divide every 3 to 5 years to maintain vigor. Plant evergreen species in spring. Daylilies are basically sun lovers. They bloom admirably in six hours of sun and will make do with less, but in the North, the more sun they get, the better. In the South, though, they appreciate protection at midday and do best under a high canopy of light shade. Daylilies thrive in USDA Hardinesss Zone 4 (–30°F) and south. While daylilies will grow in ordinary garden soil and are not fussy about pH, they perform magnificently in soils that have been generously amended with organic matter—compost, rotted leaves, or well-aged manure. Moisture is the other key to growing really spectacular daylilies. Although their plump storage roots keep them going in times of drought and guarantee survival, an abundance of water makes all the difference to the quality and quantity of the flowers. If nature fails you, try to provide at least an inch of water a week in the North, more in the hot South. Mulching plants with shredded leaves or other light organic matter goes a long way toward ensuring moisture retention.
Propagation: 

Sow seed in containers in spring or autumn. Divide in spring or autumn.

Problems: 

Daylilies are strong plants and relatively pest and disease resistant. Some minor damage from sucking insects like aphids and thrips. Slugs and snails may damage young leaves. Rust is possible.

Species, varieties and clutivars for genus Hemerocallis

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Daylily
Hemerocallis 'Armani'
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Daylily
Hemerocallis 'Autumn Minaret'
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Daylily
Hemerocallis 'Baby Fresh'
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Daylily
Hemerocallis 'Banana Boat'
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Daylily
Hemerocallis 'Beauty to Behold'
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Daylily
Hemerocallis 'Becky Lynn'
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Daylily
Hemerocallis 'Blackeyed Stella'
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Daylily
Hemerocallis 'Brazilian Orange'
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Daylily
Hemerocallis 'Catalyst'
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Daylily
Hemerocallis 'Charles Johnston'
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Daylily
Hemerocallis 'Chorus Line'
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Daylily
Hemerocallis 'Condilla'
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Daylily
Hemerocallis 'Cool Jazz'
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Daylily
Hemerocallis 'Crystal Cupid'
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Daylily
Hemerocallis 'Dixie Hummingbird'
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Daylily
Hemerocallis 'Elijah'
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Daylily
Hemerocallis 'Elizabeth's Magic'
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Daylily
Hemerocallis 'English Witch'
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Daylily
Hemerocallis 'Forsyth Lemon Drop'
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Daylily
Hemerocallis 'Frances Fay'
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Daylily
Hemerocallis 'Froufrou'
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Daylily
Hemerocallis 'Garden Portrait'
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Daylily
Hemerocallis 'Girl Scout'
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Daylily
Hemerocallis 'Happy Returns'
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Daylily
Hemerocallis 'Indonesia'
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Daylily
Hemerocallis 'Jan's Twister'
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Daylily
Hemerocallis 'Jungle Fever'
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'Just Plum Happy' daylily
Hemerocallis 'Just Plum Happy'
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Daylily
Hemerocallis 'Kate Carpenter'
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Daylily
Hemerocallis 'Kindly Light'
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Daylily
Hemerocallis 'King's Genius'
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Daylily
Hemerocallis 'Malaysian Monarch'
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Daylily
Hemerocallis 'Mini Pearl'
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Daylily
Hemerocallis 'Stella de Oro'
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Daylily
Hemerocallis 'Strawberry Candy'
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Daylily
Hemerocallis 'Sydney Eddison'
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Daylily
Hemerocallis 'Yum Yum'
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Golden Zebra® Daylily
Hemerocallis x 'Malja'