General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Partial Shade to Full Shade
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Plant Height: 6 - 12 inches
Plant Spread: 6 - 12 inches
Leaves: Unusual foliage color
Spring ephemeral
Other: The above ground parts of Trilliums are scapes with three large, leaf-like bracts with the true leaves reduced to underground papery coverings around the rhizomes.
Fruit: Other: three-valved pod
Fruiting Time: Late spring or early summer
Flowers: Showy
Fragrant
Flower Color: Yellow
Bloom Size: 1"-2"
Flower Time: Spring
Underground structures: Rhizome
Uses: Groundcover
Will Naturalize
Propagation: Seeds: Stratify seeds: 3 months at 40 degrees
Sow in situ
Seeds are hydrophilic
Other info: Plants can be grown from seed, but it can take up to two years for fresh seed to germinate and another five to seven years for plants to bloom.
Propagation: Other methods: Division
Other: Trilliums are not bulbs and don’t like drying out. They lose all living roots and will become limp and have little chance of surviving beyond the first season if bare rooted for any time.
Awards and Recognitions: RHS AGM
Other: 2006 Great Plant Picks award winner

Image
Common names
  • Yellow Trillium
  • Yellow wakerobin
  • Wood Lily
  • Yellow Toadshade
  • American Wood Lily

Photo Gallery
Location: Pleasant Grove, Utah
Date: 2011-05-13
Location: Iowa
Location: my Zone 7b garden in North Georgia Mountains
Date: 2023-03-20
Location: Iowa
Location: Blaine TN
Date: 2019-04-26
Trillium luteum
Location: Iowa
Location: Iowa
Date: 2017-04-26
Location: Dayton, TN
Date: 2014-05-02
shaded, wooded back lot in Eastern Tennessee
Location: In the Missouri Botanical Garden in Saint Louis
Date: Spring, 2004
Yellow Trillium (Trillium luteum) 003
Location: my front yard
Date: 2012-04-17
Location: Iowa
Date: 2018-05-02
Location: Lucketts, Loudoun County, Virginia
Date: 2013-04-19
Location: Blaine TN
Date: 2018-04-17
About 6 years since originally planted

Date: 2018-05-10
Location: St Louis - MoBOT
Photo by farmerbell
Location: Montréal Botanical Garden
Date: 2012-05-26
Trillium luteum
Location: St Louis
Date: 2012-03-24
Photo by Legalily
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2019-05-04
Location: My yard in SE Nebraska
Date: May 7, 2011 11:52 AM
Location: My garden in N E Pa. 
Date: 2011-02-23
Location: My garden in N E Pa. 
Date: 2012-05-16

Photo Courtesy of Prairie Nursery. Used with Permission
  • Uploaded by Joy
Location: Meadowlark Botanical Garden, Fairfax, Virginia (May 2022)
Date: 2022-05-01
Location: Alpine show in Spring 2014
Date: 2014-06-03
Have to save up and add these as well, some very nice photographs
Location: Tennessee
courtesy Sunlight Gardens, www.sunlightgardens.com
Location: My garden in Kentucky
Date: 2012-03-28
Photo by SongofJoy
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2019-05-04
Location: my garden, Gent, Belgium
Date: 2008-04-21
Location: In the Missouri Botanical Garden in Saint Louis
Date: Spring, 2004
Yellow Trillium (Trillium luteum) 001
Location: In the Missouri Botanical Garden in Saint Louis
Date: Spring, 2004
Yellow Trillium (Trillium luteum) 002
Location: Amherst, New Hampshire
Date: May

Photo Courtesy of Prairie Nursery. Used with Permission
  • Uploaded by Joy

Courtesy Gardens in the Wood of Grassy Creek
  • Uploaded by vic
Photo by plantcollector
Location: My garden in Kentucky
Date: 2012-03-28
Location: My garden in Kentucky
Date: 2012-03-28
Location: My garden in Kentucky
Date: 2012-03-28
Location: My garden in Kentucky
Date: 2006-06-24
This plant is tagged in:
Image

Comments:
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Jan 15, 2012 1:24 PM concerning plant:
    Yellow Trillium is the most common species of Trillium in Tennessee where it can be seen by the thousands. Its natural range is from north Georgia to southern Kentucky. It prefers to grow in rich deciduous forests on basic soil. It has large yellow-green flowers that sit right on top of beautifully mottled leaves up to 14" tall. Flowers smell strongly of lemons. Mid to late spring blooming. (Sunlight Gardens)
  • Posted by Marilyn (Kentucky - Zone 6a) on May 25, 2013 4:22 AM concerning plant:
    "Trillium luteum s a species of flowering plant in the family Melanthiaceae, with native populations in the Great Smoky Mountains of the USA and surrounding areas. It occurs in parts of North Carolina, Georgia, Tennessee and Kentucky, usually in the shade of mature deciduous trees. It is especially abundant around Gatlinburg.

    Growing to 16 inches tall by 12 inches wide, it is an herbaceous perennial flowering in spring. It is cultivated in temperate regions for its variegated leaves and yellow, lemon-scented flowers. It has gained the Royal Horticultural Society's Award of Garden Merit.

    Escapes from cultivation have been noted as far north as the northern Berkshires in Massachusetts and Saginaw, Michigan."

    Taken from wikipedia's page at: http://en.wikipedia.org/wiki/T...

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