Symmetry?
Before breaking ground on your new
landscaping bed, you have to decide upon
whether to use symmetry or not. There are
two general schools of thought when it
comes to beds, they are:
  • Symmetry = beauty
  • Variety is the spice of life
There's no right or wrong answer, some
people prefer beds that have perfectly
matching sides, and some prefer to have
beds where the sides are different or contour
another feature of their property. However, if
you decide to be symmetrical, you can't
have differences between the sides because
they will be perceived as mistakes on your
part.  
Decide upon what would look best on your
house and you're ready to start
marking.