Agave amica, formerly Polianthes tuberosa, the tuberose, is a perennial plant in the family Asparagaceae, subfamily Agavoideae, extracts of which are used as a note in perfumery.
The common name derives from the Latin tuberosa through French tubéreuse,[2] meaning swollen or tuberous in reference to its root system.
The flowers are tubular, with a tube up to 2.5 in (6 cm) long, separating into six flaring segments (tepals) at the end, and are strongly fragrant.
[3] The double-flowered cultivar 'The Pearl' has broader and darker leaves, and shorter flower spikes, usually reaching only 1.5–2 ft (50–60 cm).
Once the foliage begins to yellow in October, the leaves should be clipped, the rhizomes dug and stored in a cool, dry and dark place for the winter.
[19] The most popular variety is a double-flowered cultivar known as 'The Pearl' that grows to 2.5 ft (76 cm) tall and features pale pink buds opening to cream.
[19] Tuberoses were especially beloved by Louis XIV of France, who had them planted in the hundreds in the flower beds of the Grand Trianon at Versailles so that the scent was overpowering, which no doubt helped cover the smells from the poor sanitation[broken anchor] of the palace.
They were grown in clay pots and planted directly in the ground; to keep the perfume consistently strong new specimens were rotated in, sometimes daily.