Most gardeners grow these plants for their leaves, not their blossoms. All of them should be grown in full sun.
Lamb's ear: Grown in zones 4 to 7, this is one of the few plants that one grows in the garden as much for the sake of touching it as for the sake of looking at it. In fact, that is how it got its common name. The leaves are as soft to the touch as are the ears of a fuzzy little lamb. When not in flower, it stands about 8 inches tall with a spread of about 12 inches.
Emerald Gaiety Euonymus: This perennial shrub is deer-resistant and can be used as a ground cover. Its bicolored leaves are green and white, but the white part is strong enough to create an overall impression of brightness. Grown in zones 5 to 8, it gets to be 3 to 5 feet tall with a somewhat greater width.
Yellow loosestrife: Grown in zones 4 to 8, this plant also has bicolored leaves. It is at its best when the plant first emerges in spring; its color is green and pink. After this great spring display, yellow flowers come after that as a bonus. Standing 1 to 2 feet tall when fully grown, its width is slightly less than that.