Flowers for Hitler

... is a collection of poems, rather than a poem. It was first published in Totonto in 1964. Three of the 95 poems name Hitler in their titles, but none of them is called Flowers for Hitler.

The Fandom wiki notes that "Like other artworks regarding Adolf Hitler as a subject, it was somewhat controversial in its day. The inscription on its initial page reads 'In an earlier time this would be called Sunshine for Napoleon, and earlier still it would have been called Walls for Genghis Khan.' Unlike some of Cohen's later poetry, all of the poems in Flowers For Hitler are properly titled. The opening quote comes from Primo Levi's Survival in Auschwitz".