Which flower makes you fresh? Did you mean perfumes that are created with flower scents? Or actual flowers? If you are asking what flowers that are created with the scent of floral smells, gardenias is a beautiful scent.
If you are asking about a flower that is romantic and pleasing to a woman. Then it would be roses. Red roses are what many women enjoy receiving and they smell delightful.
Hope I was able to answer your question.