Choose one candle, then pair it with another to discover their unexpected olfactory alchemy, which seems to reinvent each scent as it creates a third. Tuberose and Iris duo: A night in Grasse. In the old days, in the Grasse region, young girls were forbidden to go out on the evenings the tuberose was picked. Its heady fragrance "went to their heads", it was said. Some sneaked out, their kisses scented like white flowers and the iridescent powdery notes of their make-up.