Trillium grandiflorum, is one of my favorite spring blooms. It grows in deep, rich, humusy, moist but well-drained soils in part to full shade (zone 4-8). As with all native wildflowers, you should not pick or disturb them in their natural setting.
In Spring I treasure hunting for Trillium while walking in the forest preserves. It makes my day to see their cheery flowers on the woodland floor often before the trees leaf out. You can spot this simple, graceful ephemeral perennial by looking for three white petals above three smaller green sepals. There are no true leaves visible.
Seeds form in capsules after bloom and are dispersed by ants, so you often see a group of Trilliums in bloom. This rhizomatous plant is slow and difficult to propagate from seed and spreads very gradually if left undisturbed. They don’t self pollinate, so you will need to have more than one plant if you are lucky enough to find Trillium rhizomes for sale. Note, they are favorites of deer.