Answer: Most evergreen trees reach very large proportions at maturity and probably won't fit in the area you describe. May I suggest a large shrub trained into tree form? You'll have the beauty of multiple trunks along with a dense, green canopy of leaves. If this appeals to you, consider camellia, Cercis (redbud), Chamaecyparis (thread-branch cypress), or Viburnum. Hope the above information is helpful!
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