Tuberose absolute from the flowers of the Polyanthes Tuberosa
is one of the most expensive perfumery materials known. Until recently tuberose absolute was extracted via the enfleurage method, but now with labor costs increasing this method is no longer viable economically speaking. The flowers excude a very strong heady scent which continues to release perfume for a long time after the blossom has been plucked from the stem. It takes 3,600 kilos of flowers to produce 1 single kilo of the absolute, so there is hardly any wonder it is so expensive. Arctander on P. 631 of his book Perfume and Flavor Materials of Natural Origin, describes the scent of tuberose from concrete as a "heavy floral, almost nauseatingly sweet, heavy and somewhat spicy odor
(Authors note) When I smell tuberose I get a distinctly tuberous smell, reminds me of raw potatoes, it is only after this subsides that I get the floral heavy sweet scent which Arctander describes.