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Gammill, Lynn Crosby
Trillium grandiflorum (Michx.) Salisb.
Large-flower wakerobin, Large-flowered trillium, White trillium
USDA Symbol: trgr4
USDA Native Status: L48 (N), CAN (N)
A stout, 12-15 in. stem is topped by three large, oval leaves. A single large, white, long-lasting flower arises above the leaf whorl and becomes pink as it matures. The large, solitary, waxy-white flower (turning pink with age) is on an erect stalk above a whorl of 3 broad leaves.
This largest and showiest trillium is frequently cultivated in wildflower gardens. The underground rootstalks were gathered and chewed by Native Americans for a variety of medicinal purposes. The plants have also been picked and eaten as cooked greens. This practice may be fatal to the plant, since these trilliums arise from the rootstalks, which often die if the leaves are removed.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf Complexity: Simple Flower:
Red Size Class:
Bloom InformationBloom Color: White , Pink
Bloom Time: May , Jun
, WV Canada: ON
, QC Native Distribution: GA
n. through mts. to New England (locally) & to s. Que, MI
& MN Native Habitat:
Rich, mixed woods; thickets; swamps
Growing ConditionsLight Requirement: Sun , Part Shade , Shade
Soil Moisture: Moist
Soil pH: Acidic (pH<6.8)
Soil Description: Moist, humus-rich, sandy loam.
Conditions Comments: A mulch of rotted or shredded leaves at the beginning at end of the season is beneficial.
Other Showy Insects Use Food:
EDIBLE PARTS / PREPARATION: Young, unfolding leaves. Wash leaves in warm water to remove dirt and debris. Do not use dish detergent or any type of sanitizer. Cook in boiling, salted water for ten minutes and serve like greens. (Poisonous Plants of N.C.) Use Medicinal:
peoples used snow trillium roots and rootstocks as medicine, and the young leaves are said to make excellent salad and cooked greens, but it would be a shame to kill such a beautiful plant. (Kershaw) Warning:
POISONOUS PARTS: Berries and roots. Only low toxicity if eaten. Toxic Principle: Toxicity unknown, but caution because of its relationship with known toxic plants. Conspicuous Flowers:
Seeds do best when planted outdoors soon after fruits have ripened. Sow 1/2 deep. Flowers the fourth or fifth year. Rhizome
division and rhizome
wounding are methods of increasing existing plants. For the latter, remove the soil to expose the rhizome Seed Collection:
is a white, oval
berry. Seeds mature within 5-6 weeks after the plant flowers. They are ready to collect when they are dark or beginning to darken. Store for short periods only by packing the whole berry
in moist sphagnum sealed in a refrigerated container. Seed Treatment:
Not Available Commercially Avail:
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Delaware Nature Society
- Hockessin, DELongwood Gardens
- Newark, DEMt. Cuba Center
- Hockessin, DE
From the ArchiveWildflower Newsletter1985 VOL. 2, NO.1
- A Glorious Spring, Lupines in Landscapes, Director's Report, Notable Quote, Wild...Wildflower Newsletter1987 VOL. 4, NO.1
- One Million Bequest Announced, Lady Bird Johnson On Celebrating Four Years, Spri...Wildflower Newsletter1990 VOL. 7, NO.3
- Is Wildflower Collecting a Good School Activity, Wildflower Center Study Finds C...Wildflower Newsletter1990 VOL. 7, NO.4
- Research Update, Wild-Collecting Endangers Natives, Director's Report, Maryland ...Wildflower Newsletter1993 VOL. 10, NO.2
- Berry Browsing in the Backyard, Director\'s Report, Essays on Trillium\'s, Natio...
Record Last Modified: 2007-01-01
Research By: TWC Staff