This was actually something I was thinking about recently, after a friend of mine was telling me how upset she was to discover that the cemetery where her family's graves are had become neglected and quite overgrown over the past year. I realized that most of my family members who are deceased are either buried out of state, or they requested cremation and their ashes scattered. So no, we don't do this as a family custom.
However, I take comfort in the thought that through the Boy Scouts, I had the opportunity to teach my children respect and reverence. Every year for Memorial Day, our troop held a ceremony and placed American flags at every military grave in one of our local cemeteries, and at Christmas time we do the same with wreaths.