I like the "conciseness" matching the poem to title. (I agree w/Kato: the "brief" line is redundant given the context).
From a guy who was raking the weight of snow off his roof the first week of May, the poem is refreshing. Might consider shuffling "perennial" up above the flowers or just below them for that connection...just a thought.
"City" is also a bit redundant b/c Chicago is mentioned. As is "Spring" if May is mentioned. Or vice versa ;)
Nice Kodak type moment. I was there w/you. I saw your glance to the "sweet"-ness of her smile.