evergreen plant are plant that hold their green foliation all year around . Conifer Tree – with needles and cone – are the most common evergreens , but many scale - leaved and broad - leave trees also stay green all wintertime . Evergreen shrub are also a worthful landscape improver , providing shelterbelt and privacy screen when plant in hedges , or an attractive individual accent planting .

Needled Evergreens

Needled evergreen or coniferous tree are plants with long , thin pointed foliage , which also bear their seeds in cones . Needled evergreen let in tidy " Christmas tree diagram " pyramid shaped trees with mingy needles and gray green to aristocratic foliage , and towering purple pines with long balmy dark fleeceable needles . The University of Missouri Extension ’s recommendations for evergreen plant pines for landscape utilization include the towering whitened pine ( pinus strobus ) which maturate in rural preferences in much of the United States , but not in urban areas as it is tender to pollution ; the Austrian pine ( Pinus jigaboo ) with its sour , bristly - looking phonograph needle ; and the Scotch pine tree ( Pinus sylvestris ) which is often grow for Christmas Sir Herbert Beerbohm Tree . Spruce trees suggested for landscape habit let in the Norway spruce ( Picea genus Abies ) and Colorado blue spruce ( genus Picea pungens ) with its typical blue phonograph needle . The lily-white fir ( Concolor abies ) , Douglas fir tree ( Pseudotsuga Menzeisi ) and hemlock ( Tsuga canadensis ) all turn slowly to tower tallness and have softer - looking needle than the pines and spruces . The yew ( Taxus spp . ) is another soft - needled evergreen , available in cultivars from low - growing groundcovers to large bush .

Scale Leaf Evergreens

Not all evergreen plant have pointed needle ; many have flavorless , lepidote leaf construction . miscellanea of scale foliage evergreens grow throughout most of the United States , and many flourish in juiceless sandy surround where their plate folio social organisation helps conserve moisture . Examples list by the Colorado State University Extension include arborvitae such as the eastern arborvitae ( Thuja occidentalis ) , junipers such as the Chinese raetam ( Juniperus chinensis ) and Rocky Mountain juniper ( Juniperus scopulorum ) , and the Eastern reddened cedar ( Juniperus virginiana ) .

Broadleaf Evergreens

Some broadleaf tree diagram and shrub species also maintain their leaf all winter . These let in the Buddy Holly ( Ilex spp . ) , boxwood ( Buxus sempervirens var . ) , and rhododendrons ( Rhododendron spp . ) . The University of Illinois Extension advises that these broad - leaf evergreen are prone to wintertime impairment , primarily due to dessication ; the Extension recommend water these plants well in the previous downfall , and through wintertime as temperatures permit , and mulching heavily around them to conserve grease moisture . Planting in sites blocked from flatus , or in the lee of obtuse needled or graduated table - leaf evergreens , will help assure the success of broadleaf evergreen planting .

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