Lucretia (Bingleberry) The oldest and most widely grown trailing blackberry variety with its origin in West Virginia. This variety came to general notice after the Civil War in 1886.  The berries are large, long and firm, picked for shipping as soon as they are black, but not very sweet unless left on the plant a day or 2 longer.  the season is about June 1 in North Carolina section.  Also grown in the North eastern states.