http://naturehills.com/gardening/blogs/growing_wise/archive/2009/04/24/beach-plum.aspxBeach plum or Prunus maritima is just what it sounds like-- a plum tree that grows along the seashore or sometimes even along lake shores. It's a small native tree (about ten feet tall at maturity) that can survive some fairly adverse conditions,enCommunityServer 2007 SP1 (Build: 20510.895)