Convolvulus cneorumA beautiful evergreen shrub with silvery leaves, large white, trumpet shaped flowers and an attractive rounded habit. Also known as 'Silverbush' it provides a lovely contrast to the greens shades of other garden plants. Shows good drought tolerance so is perfect for patio containers, or as a focal point in small borders or dot planted in larger schemes. Not fully hardy, it is best planted in a sunny, sheltered position where will survive winters with