Gravelly sea shores are the natural habitat of many members of the family Brassicaceae including Sea Rocket. Changing the family name of this family of plants from Cruciferae to Brassicaceae (Cabbage plants) has done nothing for a group that already got quite a bad press. (Oilseed Rape, which causes allergic reactions in even normally healthy individuals, is an example.) It is therefore important to remember that some of our most loved garden plants and wildflowers are also 'cabbage's - Aubrieta deltoidea, for instance.