We are trying to hide three utility boxes at the back of our back yard. I want something evergreen so the boxes are blocked out (from the house and patio) all year long. Prefer ultimately around 5-10 ft tall and I need to span @ 20-25 ft long. It is fully exposed to sun all day and to wind all year. We may put in a pool soon so nothing deciduous will be considered--and no photinia please---I've tired of spraying fungicide. I have 4 dwarf maiden grass in already for summer "blockage" but need the full year screen after I've cut back the maiden grass. Considering Eleagnus amd Ternstroemia presently. Any other candidates?