I recently visited a client’s garden to carry out a twice-yearly maintenance session. I find these visits really interesting to find out how the garden has fared and matured. The client informed me that her Clematis cirrhosa balearica, pictured above, had flowered all through the snowy winter, and had been a mass of yellow flowers, so much so that you could hardly see the foliage. A plant that I will be recommending! 

This climber is native to Minorca, is a vigorous evergreen that flowers from December to February, and will grow in full sun or partial shade.