Tough and hardy, Rosa spinosissima (Scotch Rose) is a small suckering shrub boasting pretty, single, creamy-white flowers, up to 2 in. across (5 cm), in late spring to early summer. Mildly but sweetly scented, they are borne in profusion on prickly stems bearing a handsome, fern-like foliage of bright green leaves that are composed of rounded, delicate leaflets. As an extra bonus, the blossoms are followed by spherical, purplish-black fruits. Disease, salt and drought tolerant, Scotch Rose…