There are lots of list of 'beach' plants that can take some salt spray and mists.
Here are some California coast ones.
http://www.cnpsci.org/html/PlantInfo/McGrathPlants.pdf A few more beach tolerant:
large plants such as cardoon, big-leaved plants like canna, and, for textural contrast, grasses such as blue oat grass. Then seasonal color, favoring a sunrise-to-sunset theme that blends reds, oranges, and purples (cannas, crocosmia, Persicaria 'Red Dragon', salvia, smoke tree, and coneflowers), as well as sea blues (catmint, Geranium 'Rozanne', lavender, Verbena bonariensis).