Herbs are the quintessential plant: they look good ... on the sunny side of the house I would include chives, oregano, lemon thyme and a creeping rosemary to drape over the edge.

The herb thyme has over 300 varieties ... Mother of Thyme; Garden; English; Common; German; Juniper; Lemon (lemon scent); Lime (lime scent); Orange (orange scent); and Wooly (furry foliage).