If you are looking for a white flowered clematis then clematis 39sylvia denny39 is highly recommended it has exuberant large white flowers with creamy yellow anthers in may and later in the summer a second flush of flowers emerge this time more simple with just 6 single sepals it is a beautiful climbing plant for a range of garden styles from contemporary to cottage it likes a sunny or partial sun position height 300cm 401183441 spread 90cm 40353441 pruning