Glad to help. You know, I'll bet Crazy Little Woman is right, and it should be "allee" and not "alley(s)". Her link shows an avenue of trees, and my computer dictionary says:

allée |äˈlā| noun
an alley in a formal garden or park, bordered by trees or bushes.
ORIGIN mid 18th cent.: French.

The urban imagery of "alley" always reminded me of gritty cop dramas and hardboiled detectives pursuing their quarry on dark nights - not at all in keeping with a garden!