There are a bunch of these flower shops in a row along Avenue near Davenport and even a large nursery closer to my place, but I always shop here.
Not that this place is exactly spacious, but it's less cramped than the other shops nearby, and there's a good vibe: lots of fresh air and green. There is a great selection of healthy plants and attractive-looking planters (necessary). The prices are reasonable (just got two yucca plants for 30 each), and the service is great. The staff is always friendly and the owner (I think she's the owner) is also friendly and knowledgable.