From Canada down to Georgia, one of the loveliest signs of spring is the trillium. There are dozens of species native to North America. Some of them, like the Trillium Grandiflora, produce big, white flowers, while others, such as the Sweet Wakerobin, are a deep maroon. Though they're less common than they used to be, due to the clearcutting of forests and collectors, you still see them along forest paths and shady, undisturbed areas. With a little patience, you can create a beautiful stand of trilliums under your trees.
Your best bet for growing trilliums is to order rhizomes online from a reputable nursery. Trilliums take two years to grow from seed, and bare-root or potted plants sometimes don't transfer well. The rhizomes are easy to plant. Just be sure to order Trilliums that fit your region (for instance, Sweet Wakerobins don't grow in the Northeast). That way, you'll have plants that will thrive in local conditions.
Trilliums like the dappled sun that shines through new leaves on big trees. After all, they're forest-floor flowers. So planting your trilliums under a tree will make them feel at home. Being careful not to damage any tree roots, work in some organic amendments, such as Miracle-Gro® Organic Choice® Garden Soil, into your planting area. Loosen up the soil to a depth of about 6 inches. Dig holes about 2-4 inches deep and place your rhizome with the "eye" facing up. Cover up the rhizome, water thoroughly, and tamp down the soil. Cover them with a few inches of mulch, and you're all set.
Your trilliums will overwinter and then sprout in the spring. Be patient, though, because they won't bloom until the following year. On the plus side, once they're established, you won't have to baby them. Just water them when the area seems dry. They'll give you a lovely groundcover and years of spring blooms.