Gardeners often use evergreen plant trees to tot up class round green color , ornamental interest and hint screen to lawn and garden . Various evergreen plant varieties naturally come about in the westerly realm of the United States ( U.S. ) . Gardeners in this area should take evergreen trees according to appropriate hardiness zona , ripe size , intended use and potential problems .

Western Red Cedar

Western blood-red cedar trees ( Thuja plicata ) by nature occur along the Pacific coastline . Also known as giant red cedar , matured trees reach up to 70 feet in stature and 25 feet in width . This extremity of the Cupressaceae works family line boast a columnar shape , pallid brown cone and redolent , red - dark-brown barque . The deep green , needle - like parting keep their people of color throughout the winter . Hardy in United States Department of Agriculture ( USDA ) Hardiness zone 5 to 7 , this tree diagram prefers moist , well - debilitate soils in full sun stead . westerly red cedars sometimes suffer from rotting and bagworms . Gardeners often plant western violent cedars in large lawns . Pruned tree work well as screen and hedges .

Douglas Fir

The Douglas true fir ( Pseudotsuga menziesii ) , a large member of the pine folk ( Pinaceae ) , reach between 40 and 80 feet in tallness with spreads ranging from 12 to 20 feet . Winter brave in USDA zone 4 to 6 , this fir tree variety prefer moist territory in fully cheery locations . The Douglas fir tree features a cylindrical var. , poor cones and forked cone bract . redolent , bluish - gullible needles have white bands on the bottom . This hardy tree diagram has few disease or insect problems . gardener along the Pacific coast often practice the Douglas fir as a landscape painting Sir Herbert Beerbohm Tree .

Giant Sequoia

Giant redwood trees ( Sequoiadendron giganteum ) , members of the Taxodiaceae plant kin , can live up to 3,000 years and weigh more than 200 tons . In garden options , these evergreen plant typically range from 60 to 275 fundament marvelous with spreads ranging from 25 to 60 feet . The elephantine sequoia prefers moist , cool climates and loamy soils that pick up full sunlight . autochthonal to California , the giant redwood typically grows well in USDA Zones 6 to 8 . Sequoias feature violent - brown barque , fruit cone and bluish - green , needle - like leave . Butt rot and blight sometimes fall out . Younger sequoia ferment well in large landscape painting areas .

Ponderosa Pine

Ponderosa pine tree ( Pinus ponderosa pine ) , an evergreen in the Pinaceae family , is the state tree of Montana . In garden preferences , this pine variety mostly ranges from 60 to 125 feet in height and about 30 foundation wide . The bull pine yearn often lives to be 600 years former . This tree diagram features sheaf of yellowish - gullible phonograph needle , ellipse true pine cones and aromatic twigs . youthful ponderosa pines have sinister bark , while mature pines have carmine - orange to chickenhearted - brown barque . aboriginal to Western North America ( N.A. ) , ponderosa pines typically perform well in USDA zone 3 to 7 . This tree diagram prefers moist , loamy or arenaceous soils that get full sun . Needle blight occasionally affect these trees . Gardeners sometimes expend Pinus ponderosa pine tree as a landscape tree diagram for bigger areas .

Limber Pine

The limber pine tree ( Pinus flexilis ) naturally hap in the Rocky Mountains and generally performs well in USDA Hardiness Zones 4 to 7 . This pine family member ( Pinaceae ) favour well - drained , average moist soils in fully cheery locations . These trees possess heavy taproot system that make them tough to transplant once launch . ripe limber pines range from 40 to 60 feet in height and 25 to 40 feet in width . The limber true pine features a rounded summit , brownish cone , flexible sprig and gamy - green , acerate leaf - like leaves . This low - maintenance tree sometimes suffers from whitened pine blister rusting and weevil plague . The limber pine works well as a landscape painting tree diagram for mass medium to large area .

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