‘;GRAtgx’; is a new and distinct floribunda type Rosa hybrid cultivar which is characterized by the combination of an upright to semi-weeping growth habit, good resistance to Diplocarpon rosae and Podosphaera pannosa, nearly continuous flowering, distinct cerise flowers with yellow stripes and flecks and a cream yellow reverse, a moderate rose fragrance, and the stability of these characteristics from generation to generation. The new cultivar is generally suited to landscape applications.