I liked reading others' impression of this song. For myself, the "Sweet green icing flowing down" had this meaning, and (I thought) fit the scenario well: A person had a wonderful love affair and the park was the site for idyllic memories. The loved one leaves him, and when he returns to the park alone he is seeing it through tears. Hence, the green seems to be melting and flowing down.
I liked reading others' impression of this song. For myself, the "Sweet green icing flowing down" had this meaning, and (I thought) fit the scenario well: A person had a wonderful love affair and the park was the site for idyllic memories. The loved one leaves him, and when he returns to the park alone he is seeing it through tears. Hence, the green seems to be melting and flowing down.