Answer: I think the space might be too narrow for Eugenia or Japanese Blueberry. Here are a few suggestions: Chamaecyparis pisifera 'Boulevard' (Boulevard Falsecypress); HT 10': full sun; a good evergreen for tight spaces, this narrow pyramidal shrub has silvery blue-green foliage in summer that turns grayish blue in winter. Moist well drained soil.
Juniperus scopulorum 'Skyrocket' (Skyrocket Juniper); HT 15', Width 2-3'; full sun; Very upright and narrow juniper that is tightly branched with year-round silver-blue foliage. Its narrow habit is very useful for accenting a flat, horizontal garden situation. Withstands harsh and windy conditions.
Blue Trail Juniper (Juniperus scopularum); Upright blue juniper that keeps its color throughout the winter. A very hardy and very narrow upright form. For the first few years after planting, protect with burlap during the winter months to prevent sun-scald. HT 12? Width 3'.
Hope one of these suggestions is just right for your landscape.
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