Cedars are virtually disease and pest resistant. Cedars look great as a single specimen, planted in clusters to create privacy or in containers. They are the number one choice for an evergreen hedge.
They prefer well drained soil and full sun to part shade. They grow well in full sun but tend to have a more open and ratty appearance when grown in shade.
Fertilize your cedar hedge in the early spring when flowers and plants are blooming. Ref