At our home, we have a very wide overhang which never sees any moisture, so we were looking for plants that would stay low, ideally evergreen, and would tolerate seriously dry shade. The answer was Echeveria ‘Topsy Turvy’. These patches of the Northern Mexican succulent, with blue-green foliage, have absolutely thrived here. While they probably wouldn’t be happy in deep shade, they love this high canopy with good light, but no sun. These were planted in 2018. We’d rate these as Zone 7b/8a if kept dry in winter.
One of our favorite blue-foliage conifers that thrives in the southeast heat and humidity is Cupressus arizonica var. glabra ‘Blue Ice’. This is a four year old planting of the Arizona native that’s already made a nice size specimen. Cupressus ‘Blue Ice’ is great to use for Christmas arrangements, due to it’s color, foliage fragrance, and ability to hold up very well after being cut.