We currently have columnar yews that we aren't too excited about on our north-facing, but terraced patio. In summer they get near full-sun but in the spring and fall (and winter) as the sun's arc drops, the building will shade the garden for much of the day. It will still be open and bright, but only direct sun for a few hours. We are looking to replace the yews with something either globe or mounding which can be maintained at 2-3' in size. Options include dwarf globe blue spruce, Feelin' blue deodar cedar, blue star juniper so far. Anyone have experience with the different options above in lower amounts of sun, any any other blue or blue-green short conifers we haven't considered?