Orange daylily
Hemerocalis fulva (L.) L.

SOURCE: The following information on this species is taken from Plant Invaders of Mid-Atlantic Natural Areas, http://www.nps.gov/plants/alien/pubs/midatlantic/ and invasive.org, www.invasive.org. Check the website links for future updates. The last update for the Plant Invaders information is 2002.

OVERVIEW: Common (or orange) daylily was introduced to the United States from Europe in the late 19th century. It is a very popular ornamental prized for its hardiness and variety -- there are now over 40,000 registered cultivars! Daylilies that have escaped from landscape plantings infest natural areas where they pose the greatest threat to meadows, floodplains, moist woods and forest edges. Daylilies reproduce by seed and also from thick, tuberous roots that grow rapidly to form dense clumps. Gardeners inadvertently spread daylilies by throwing away whole plants. They are difficult to control because of their thick tuberous roots.

DESCRIPTION: Leaves are long, grass-like, and bright green in color. Flowers are large, showy, and orange in color. Flowers may have spots or stripes. Many cultivars of daylily now exist and come in a wide variety of sizes and

Photo: Britt Slattery, U.S. Fish and Wildlife Service,
www.forestryimages.org.

Photo: Dan Tenaglia, www.missouriplants.com,
www.forestryimages.org.

NATIVE ALTERNATIVES: ox-eye sunflower (Heliopsis helianthoides), Canada lily (Lilium canadense), wood lily (Lilium philadelphicum), Turk's cap lily (Lilium superbum), three-lobed coneflower (Rudbeckia triloba)

For more information on day lily, please contact:
Mid-Atlantic Exotic Pest Plant Council, Inc., http://www.ma-eppc.org
National Invasive Species Information Center, http://www.invasivespeciesinfo.gov
Plant Invaders of Mid-Atlantic Natural Areas, http://www.nps.gov/plants/alien/pubs/midatlantic/
The Bugwood Network, MA-EPPC Invasive Plant List, http://www.invasive.org/maweeds.cfm
USDA - NRCS PLANTS Database, http://plants.usda.gov/

Management and Control Information

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