If you are looking for winter colour and interest in the garden there are several late autumn, and winter flowering Clematis .
One of the most commonly grown is Clematis cirrhosa illustrated above, this variety is purpurascens 'Freckles'. It is evergreen, scented and long flowering. It is best planted in sun, and is H4 hardy and best planted in a sheltered spot. Other varieties of C. cirrhosa are 'Christmas Surprise', 'Jingle Bells' both of which flower November on wards and have limey cream flowers. Another popular variety is C.cirrhosa 'Wisely Cream' flowering late from Januay to March and hardy to -10c.
C. armandii requires winter protection and Clematis cirrhosa var. balearica which is hardier H4, but may not survive a severe winter without protection.
There is also Clematis urophylla 'Winter Beauty' which is evergreen, scented and H3 hardy with small creamy white bell-shaped flowers.
Flowering in late winter early spring are C. alpina and macropetala and the very popular also is Clematis armandii, illustrated below, as attractive Clematis when grown in the right place noting that it is also H4 hardy.