Growing evergreen potted plants allows a gardener to add, move and change plants around. In areas where the winter weather turns freezing, you can bring the containers indoors or into a greenhouse for protection. Container choices include stone, wood, terra cotta, plastic and foam. Use large, deep plant pots for your evergreens. For extra large plants, place your container on casters so you can roll your plant around to different locations.
English boxwood (Buxus sempervirens 'Suffruticosa') is also called dwarf boxwood. This evergreen shrub has a very slow growth rate and will eventually reach 2 to 3 feet tall by 2 to 4 feet wide. The dark green leaves are light green underneath and 1/3 to 4/5 inches long. The leaves change to an orange color in the winter. In the spring, small flowers appear. This shrub is dense, grows in a round shape and tolerates trimming to keep its desired size.
Rocky Mountain Juniper
Rocky Mountain juniper (Juniperus scopulorum) is also known as the skyrocket juniper and Colorado red cedar. This evergreen tree has a narrow, cone shape. It grows 30 to 40 feet tall and spreads 3 to 12 feet wide. This slow growing tree is deep green to blue green and produces tiny, berry-like cones. These cones are 1/4 to 1/3 inches in diameter and are deep blue in color. The bark is reddish-brown to gray. Prune the Rocky Mountain juniper to keep it at a manageable size. Keep this tree away from apple trees, since it is a host for the cedar-apple rust fungus.
Greenmound juniper (Juniperus procumbens 'Greenmound') reaches 8 inches tall and spreads 6 feet wide. This evergreen shrub produces light green leaves that do not turn brown in the winter. It grows in a mounding habit with long wide-spreading branches. These branches drape over the sides of the container. Greenmound juniper is drought tolerant and prefers full sun. This shrub does not form roots where the branches touch the ground.
Bosnian pine (Pinus heldreichii var. leucodermis) grows 5 to 10 feet tall and 3 feet wide. This small tree produces glossy, stiff needles that are dark green. Bosnian pine naturally grows in a pyramid shape. It is commonly grown for its year round foliage.