A value fast - grow evergreen plant widely planted across the southeastern United States for screening and hedge , the Leyland cypress ( x Cupresocyparis leylandii ) grows virtually three feet p.a. . Its recent fall out of favor surrounds its susceptibleness to bagworms and fungous canker infection . If soils become infertile or teetotal , this plant life also stutter .

Japanese Cedar

If your garden ’s acidulent soil remains evenly moist year daily round and never gets soggy , the Nipponese cedar ( Cryptomaria japonica ) becomes a quality campaigner for screening once the Leyland cypresses are remove . Growing 2 to 3 feet p.a. , the foliage of Japanese cedar tree often becomes lightly bronzed in the wintertime months . The needles rate from cryptical greens to bluish greenish in color , and build billowing , soft clusters across the tree diagram .

Normally growing 50 to 60 foot tall and 25 human foot broad , consider using smaller - sized miscellany such as " Elegans Compacta " or just lop the top off of " Yoshino " once it touch your want altitude bound . This tree grow best in USDA Hardiness Zones 6 through 9 .

Green Giant Arborvitae

This hybrid coniferous tree rapidly grows to a matured top of nearly 60 foot with a breadth of 15 foot . Annually , await the Green Giant arborvitae ( Thuja ' Green Giant ' ) to bring forth about 12 - inches of extra height . Rarely plague by pest or disease and large-minded of any rich , well - debilitate dirt , its deep green sprayer of scaly needles lend a fine - grain to a garden . Grow this arborvitae in USDA Hardiness Zones 5 through 7 , perhaps in the cooler areas of Zone 8 , too .

Arizona Cypress

Gardeners who are face with substitute of Leyland cypresses growing on siccative soils should count supervene upon them with Arizona cypress tree ( Cupressus arizonica , also named Cupressus glabra ) . particularly well - suit to raging climates with humiliated humidity , it does at times battle canker sore diseases . It mature to about 45 feet in height and 20 feet in width , with fine - textured blue - green foliage . In the American Southeast , where summertime are soaked and humid , await the tree to go less than 20 year , never make towering dimension . The shallow root organisation may allow toppling in windstorms , but it does digest dry mud soils well . Some notable varieties include " Blue Ice " , " Blue Pyramid " , " Carolina Sapphire " , " Compacta " and " Watersii " . mature Arizona cypress in USDA Hardiness Zones 7 and 8 , and in Zones 9 and 10 only if the climate is arid during the summer .

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