The article has a good graphic that can be used to evaluate public spaces.
Something to aim at. The article made me feel that we're pointed in the right direction and had pointers on how to adjust our aim.

What makes a place a “children’s garden?” Colorful flowers and features to engage all the senses are certainly high on the list. It might have a theme that appeals to children, or it might include whimsical plants with unusual shapes. It should certainly attract little creatures, such as birds, bees and butterflies, that delight little people.