Hemerocallis fulva explained

Hemerocallis fulva, the orange day-lily, tawny daylily, corn lily, tiger daylily, fulvous daylily, ditch lily or Fourth of July lily (also railroad daylily, roadside daylily, outhouse lily, and wash-house lily), is a species of daylily native to Asia. It is very widely grown as an ornamental plant in temperate climates for its showy flowers and ease of cultivation. It is not a true lily in the genus Lilium, but gets its common name from the superficial similarity of its flowers to Lilium and from the fact that each flower lasts only one day.

Description

It is an herbaceous perennial plant growing from tuberous roots, with stems NaNcm (-2,147,483,648inches) tall. The leaves are linear, NaNabbr=offNaNabbr=off long and NaNcm (-2,147,483,648inches) broad.[1] The flowers are NaNcm (-2,147,483,648inches) across, orange-red, with a pale central line on each tepal; they are produced from early summer through late autumn on scapes of ten through twenty flowers, with the individual flowers opening successively, each one lasting only one day. Its fruit is a three-valved capsule NaNcm (-2,147,483,648inches) long and NaNcm (-2,147,483,648inches) broad which splits open at maturity and releases seeds.

Both diploid and triploid forms occur in the wild, but most cultivated plants are triploids which rarely produce seeds and primarily reproduce vegetatively by stolons. At least four botanical varieties are recognized, including the typical triploid var. fulva, the diploid, long-flowered var. angustifolia (syn.: var. longituba), the triploid var. Flore Pleno, which has petaloid stamens, and the evergreen var. aurantiaca.

Distribution

Orange daylily is native to Asia from the Caucasus east through the Himalaya through China, Japan, and Korea.[2] [3] Orange daylily persists where planted, making them a very good garden plant.

Hemerocallis fulva var. fulva has escaped from cultivation across much of the United States and parts of Canada and has become a weedy or invasive species. It persists also where dumped and spreads more or less rapidly by vegetative increase into woods and fields and along roadsides and ditches, hence its common name ditch lily. It forms dense stands that exclude native vegetation, and is often mistaken for a native species.

Hemerocallis fulva is an invasive non-native plant in parts of the United States and is included on lists of plants to avoid planting in some states, including Delaware[4], Maryland[5], Virginia[6] and other mid-Atlantic states.[7]

Cultivation

Hemerocallis fulva has been cultivated in Europe, and naturalized in many countries there, since at least the 16th century.[8] Several modern cultivars exist which are grown as ornamental plants.[9] As most of the varieties in cultivation are sterile triploids, and all spread via subterranean bulb offsets, the most common (and simplest) method of propagation is by root- or bulb-division.

H. fulva are long-lived perennials, and are adaptable to a range of climatic conditions. The species is a vigorous grower in nearly any location, thriving even difficult areas where other plants do not thrive. The plants grow well in full sun to open shade, and are drought tolerant. H. fulva is winter hardy to UDSA Zone 4.[10]

Special care should be taken if one owns cats, or if errant cats frequent the garden where Hemerocallis is growing, as most daylily species are seriously toxic to felines (while being somewhat less toxic to canines). In particular, cats are uniquely vulnerable, as they often explore outdoors, and can potentially brush against blooming daylilies, causing pollen to inadvertently collect on their fur; afterwards, the cat's instinctual self-grooming and licking behaviors can put them at-risk of directly ingesting the pollen.[11] [12]

Uses

The flowers, leaves, and tubers of H. fulva are edible.[13] The leaves and shoots can be eaten raw or cooked when very young, lest they become too fibrous. The flower petals and young tubers can also be eaten raw in salads, stir-fried, or otherwise cooked. The petals seem to taste better when cooked, but can also be fried for storing,[14] or dried and used as a thickener in soups or sauces. The cooked flower buds, served with butter, taste like green beans or wax beans.[15] The tubers are a good potato substitute, with a reportedly "nutty" flavor.

Notes and References

  1. Book: Elias. Thomas S. . Edible Wild Plants: A North American Field Guide to Over 200 Natural Foods. Dykeman . Peter A.. Sterling. 2009. 978-1-4027-6715-9. New York. 136. 244766414. 1982.
  2. Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan .
  3. S.K. Czerepanov. Vascular Plants of Russia and Adjacent States (2007)
  4. Web site: July 16, 2024 . Delaware Invasive Species Council . July 16, 2024 . Delaware Invasive Species Council.
  5. Web site: June 22, 2023 . Maryland Invasive Plant List . June 22, 2023 . Maryland Department of Agriculture.
  6. Web site: June 22, 2023 . Common Day Lily . June 22, 2023 . Master Gardeners of Northern Virginia.
  7. Web site: Common Daylily (Hemerocallis fulva) . 2023-06-22 . www.invasive.org.
  8. Book: Sir Ghillean Prance. Mark Nesbitt. The Cultural History of Plants. 12 October 2012 . Routledge. 978-1-135-95811-4. 268–.
  9. Book: John H. Wiersema. Blanca León. World Economic Plants: A Standard Reference. 26 February 1999. CRC Press. 978-0-8493-2119-1. 256–.
  10. Book: Tomasz Ani_ko. When Perennials Bloom: An Almanac for Planning and Planting . 1 January 2008. Timber Press . 978-0-88192-887-7. 247–.
  11. Web site: Lovely Lilies and Curious Cats: A Dangerous Combination . 16 September 2021 . US Food and Drug Admin.
  12. Milewski . Lynn M. . Khan . Safdar A. . 2006 . An overview of potentially life-threatening poisonous plants in dogs and cats . Journal of Veterinary Emergency and Critical Care . 16 . 1 . 25–33 . 2022-07-28 . 10.1111/j.1476-4431.2005.00151.x . 71027971 . amp .
  13. Web site: Edible Landscaping: Eat Your Environment . homestead.org . 26 May 2018 . 20 November 2018.
  14. Book: The Complete Guide to Edible Wild Plants . . . 2009 . 978-1-60239-692-0 . New York . 51 . 277203364.
  15. Book: Niering . William A. . William Niering. Olmstead . Nancy C. . The Audubon Society Field Guide to North American Wildflowers, Eastern Region . 1985 . 1979. Knopf . 0-394-50432-1 . 600.