I have raved about Ajania pacifica (Silver and Gold Chrysanthemum) before, but in case you missed it, I like its semi-evergreen nature, ease of growth, drought tolerance, late bloom time, and I especially appreciate its foliage. Behind it is another favorite perennial, Amsonia hubrichtii (Blue Star Amsonia) which should be grown for its ferny foliage which turns gold in the fall. However, in my opinion you can keep its skim milk blue flowers. Coming up through my patch of Ajania is another favorite, Salvia leucantha (Mexican Bush Sage).
The Amsonia foliage also does a good job at backing up the still showy flowers of Cuphea 'David Verity', which has been blooming non-stop since May.
Another plant I appreciate just for its foliage is Arum italicum (Italian Arum).
Arbutus unedo 'Compacta' (Compact Strawberry Tree) could be grown for either one of its traits. It is evergreen, drought tolerant, has beautiful bark, has delicate white flowers and edible fruit (if you are hungry, really, really hungry).
November would probably qualify as the most melancholy month, but for the blooming Camellia sasanqua. Camellias make winter bearable. The following are 'Autumn Rocket' (2), 'Kanjiro' and 'Yuletide'.
Now that all of the look-at-me summer annuals have either been pulled or are frozen, some of my subtler evergreens can be appreciated. This pair is Ilex cornuta 'O'Spring' (O'Spring Chinese Holly) and Danae racemosa (Poet's Laurel).
To see how the changing season is treating other people's gardens, visit Carol at May Dreams Gardens, who graciously hosts Garden Bloggers Bloom Day on the 15th of each month.