Herzgewächse (German: "Foliage of the Heart"), Op. 20, is a composition by Austrian composer Arnold Schoenberg scored for coloratura soprano, celesta, harmonium, and harp. The text is taken from a poem of the same name by Maurice Maeterlinck. The duration of the work is approximately three-and-a-half minutes, making it the shortest of Schoenberg's works with its own opus number. The work is also notable for the extreme demands made on the singer which at one point has to ascend to a high F (pianissimo), nearly two-and-a-half octaves above middle C.

Librettist Maurice Maeterlinck
Date of composition 1911
Premiered 1928, April 17th in Vienna, Austria
First published 1920 by Universal Edition
Type Song(s)
Tonality Atonal
Catalogue Op. 20
Approx. duration 4 minutes
Spoken language German
Instruments Voice
Celesta
Harp
Harmonium
Autotranslations beta Arnold Schönberg: Herzgewächse, Op. 20
Arnold Schönberg: Herzgewächse, Op. 20
Arnold Schönberg: Herzgewächse, Op. 20