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For Your Garden - December 2014

Native plants provide beauty as well as food and shelter for wildlife. Native species are adapted to the Illinois climate. They require little or no watering and are resistant to drought, insects and most diseases. Because they are perennials, you can welcome their presence year after year.

large white trillium (Trillium grandiflorum)
Photo © River Valley Photographic Resources, Ltd.,

Large white trillium grows mainly in the northern half of Illinois although it can be found occasionally in the southern half of the state. It thrives in rich woodlands. Like all trilliums, this member of the lily family has three leaves, three petals and three sepals. The white petals turn pink as they age. The plant develops from a bulb. Flowering occurs in April and May. Large white trillium typically reaches one to one and one-half feet in height.

Classification and taxonomy are based on Mohlenbrock, Robert H. 2014. Vascular flora of Illinois: A field guide. Fourth edition. Southern Illinois University Press, Carbondale. 536 pp.

Illinois Range

Native Plant Information

For more information about Illinois native plants, visit our Native Habitat Descriptions, Requirements, and Plant Lists page. The following publications are available from the IDNR on our publications page.


​Kingdom: Plantae
Phylum: Magnoliopsida
Class: Liliopsida
Order: Liliales
Family: Trilliaceae

Illinois Status: common, native