Two French horticulturalists have named a new type of white rose “Pope Franciscus” in honour of the Holy Father.

http://www.cathnewsusa.com/2015/06/new-variety-of-rose-named-after-pope-francis/?newsletter=1

..."White roses are of special importance to Pope Francis, a sign of his devotion to the Little Flower Saint Thérèse of Lisieux.

In the book El Jesuita, then-Cardinal Bergoglio said whenever he has a problem, he asks Saint Thérèse “not to solve it, but to take it into her hands and to help me accept it and I almost always receive a white rose as a sign.”

Saint Thérèse promised that, after her death, she would “let fall a shower of roses” as a sign of her intercession."