The Cranberries are ready! October 29, 2011 Our area of SW Washington State is similar to the marshes of Cape Cod. We have had cranberries growing since 1872. This past week, The Seattle Times did a story on the bogs just a few short blocks away from us. You can read it here. A berry good bog | Northwest Wanderings In coastal southwestern Washington, it's time to harvest cranberries, one of the few fruits native to North America.