by Connie Oswald Stofko Everything in this landscape– including the stone– is done in greens, whites and purples. “The homeowner left the design up to us,” said Sean Haentges, owner of S & R Greenleaf Landscaping. “We incorporated the design with the house.” The design at 48 North Parade St., Buffalo, was part of the Front Yard Competition, an event in the National Garden Festival in Buffalo in 2010. As we promised, throughout the winter we’re showing you designs from…