Good morning. I recently purchased 3 Magic Carpet Spireas for the front of our home as foundation plants. I'm looking for ideas for companion shrubs, preferably evergreen, with little maintenance. I've seen some yews that I thought might work. The 3 varieties are densiformis, nigra, and wardii. Would any of these work? Also, something tall to go on the end? Not arborvitae. The area is 21' long, and 6' wide, but could be wider. Gets morning sun.