I believe this song is about Papaver Somniferum, the opium poppy. As are many songs on this album (Poppies, and Opium). I think the lyrics are actually "Black cat petals and a smiling crown" because when an opium poppy is ready for harvest the "crown" on the seed pod curls up, a smiling crown. To make poppy tea you add the seed pods to lightly boiling water "Murmur simmer and I'm feeling slow" the simmering of the pods and the "feeling slow" as the effects of the opiates.
I believe this song is about Papaver Somniferum, the opium poppy. As are many songs on this album (Poppies, and Opium). I think the lyrics are actually "Black cat petals and a smiling crown" because when an opium poppy is ready for harvest the "crown" on the seed pod curls up, a smiling crown. To make poppy tea you add the seed pods to lightly boiling water "Murmur simmer and I'm feeling slow" the simmering of the pods and the "feeling slow" as the effects of the opiates.