Create a green screen
Even if you can smell what your neighbor
is grilling, you still want to maintain that
illusion of privacy. And because fences
can be only so high (that is, not high
enough) in most municipalities, plants
will add the height you want. Hedges
offer a year-round green wall; deciduous
trees provide more diffused privacy.
Add a disguise
Planting a garden with shrubs and flowers of
differing heights, including climbing ones along
the perimeter of your yard, creates a greater
sense of depth. To further blur where your space
ends and your neighbors begins, use branches
overhanging from their yard to your advantage.