[using curves on a group]

I am still very new to graphic design in general and was wondering if there was a way to make a group of objects bend? I am following an illustrator tutorial and the whole thing is done on a straight willow branch and at the end they make it curve. Is this possible with Designer? I've tried playing with the transform tool and the only thing I can seem to do with that is move the group around the art board or severely distort my flowers :(