Which ballet by Tchaikovsky includes the 'Waltz of the Flowers'?

The ballet by Tchaikovsky that includes the “Waltz of the Flowers” is The Nutcracker.

The famous waltz appears near the end of Act II, during the divertissement in the Kingdom of Sweets. It follows dances associated with chocolate, coffee, tea, and marzipan before the ballet reaches its concluding scenes. Tchaikovsky also included it in the concert suite he arranged from the ballet.

The Nutcracker premiered at the Imperial Mariinsky Theatre in Saint Petersburg on 18 December 1892. Its story draws on E. T. A. Hoffmann’s 1816 tale The Nutcracker and the Mouse King, through an adaptation by Alexandre Dumas. Marius Petipa planned the original choreography, with Lev Ivanov completing much of it.

A common mix-up is with The Sleeping Beauty, another Tchaikovsky ballet that contains famous waltzes. The Nutcracker is especially associated with Christmas, while The Sleeping Beauty is known for its “Rose Adagio” and wedding waltz. The “Waltz of the Flowers” itself is scored in D major and is one of Tchaikovsky’s most recognizable melodies.