* Pergola de roses: This is the most literal translation, using the word "pergola" (a structure with a latticework top) and specifying the presence of roses.
* Tonnelle de roses: This is similar to "pergola," but "tonnelle" specifically refers to a vine-covered structure with a rounded or arched top.
* Berceau de roses: This translates to "rose bower" and evokes a more romantic image of a small, arched structure covered in roses.
Ultimately, the best translation will depend on the context and the specific kind of rose arbor you are referring to.