Posted by Bob on October 14, 19100 at 14:08:19:
Every year I plant various vinca vine species along the drive, behind a retaining wall. Being in the direct sun they grow wonderfully and provide long hanging vines along the full length of the wall. The problem is, how to get them to winter over. I live in N.E. Massachusetts near the ocean and have only had 2or3 plants survive the winter. Those that survive produce a beautiful display of blue flowers in the spring, but each spring I must replace those that die.Any help? Thanks