Springdale Florist is on the corner of Camp Ave and Hoyt St. in Darien. The Cemetery is right across from it with entrances on both Hoyt St and Camp Ave. The New Canaan commuter train runs right through the cemetery.
How do I know? I lived on both Hoyt St and right across the street from the Camp Ave entrance. Besides, my grandfather is buried there.
It's definitely in Darien.
Hope this helps,
D. Lee Gullett