Tchaikovsky began his opera Mandragora (Мандрагора) (TH 207 ; ČW 441) in December 1869. However, only one scene — the Chorus of Flowers and Insects — was composed before he abandoned work the following month.
Nikolay Kashkin's reminiscences of Tchaikovsky contain a detailed account of the origins and initial stages of work on Mandragora, which he dated imprecisely to the autumn of 1869 or 1870. A more precise date is given in a letter from the composer himself to Modest Tchaikovsky of 13/25 January 1870. In this letter, he reported: "... I have written a chorus of insects for the opera Mandragora, the subject of which I think is familiar to you; it was written by Rachinsky. I had made up my mind to use it as a libretto, but my friends dissuaded me, arguing that the opera was not well-suited to the stage".
And so Tchaikovsky did not write the opera. Nikolay Kashkin blamed himself, since after listening to the Chorus of Insects for the opera, Kashkin expressed the view that the subject would be more suited to a ballet, rather than an opera. "A protracted argument ensued", wrote Kashkin, "then suddenly I noticed that Pyotr Ilyich's expression had changed, and almost in tears he told me I had convinced him that he could not possibly write an opera on this subject, but he was so upset by this that in future he would never again tell me about his intentions" .
The score of the only scene to be sketched — the 'Chorus of Insects' mentioned above — is dated 27 December 1869 [O.S.]. Tchaikovsky later orchestrated this number as an independent piece, under the title Chorus of Flowers and Insects.
A knight falls in love with a beautiful lady, who spurns his affections. A feast at the castle. A minstrel sings a ballad about the omnipotent Mandragora . The knight searches in the secret forest for Mandragora. Night. Incantation. The Mandragora blossoms. The prince pulls it up from its roots—and it turns into a beautiful enchantress who, of course, immediately falls in love with him, and in the form of a page, attaches herself to his foot. However, the magic spell is cast, since in the knight's beloved jealously is at first awakened, and then love. Finale—as a result of this reversal the unfortunate Mandragora turns back into a flower, and the lovers wed