Evergreen plants retain their leaves year round. They do shed old leaves as new leaves come out, but they always have leaves on the stem. Some examples of evergreens : Laurel, Rhododendron, Arbutus, Conifers.
Deciduous plants lose their leaves in the fall and their stems are bare all winter. In the spring they sprout out new leaves which they retain all season. In the fall the leaves change color and create a grand display of color. Some examples of deciduous plants: Japanese Maple, Burning Bush, Fruit Trees, Smoke Bush, Barberry, Dogwood.