Clematis 39guernsey cream39 is known and loved for its large creamy flowers measuring up to 12cm across with their contrasting yellow stamens and a pale green stripe this hardy perennial looks wonderful when climbing up a trellis or support backed by dark green foliage for maximum visual effect flowering from may through to july then again later in the summer this is a climber that has an extended period of interest it not only has dramatic cream flowers but once they fade there ar