Originally part of the Richard Beatty Mellon estate, the Mellon Park Walled Garden has become a beloved public gathering place.

In 2009, the Parks Conservancy began a restoration and improvement project that revived the garden's plantings, repaired its infrastructure, and added seating. The restoration honors the memory of Ann Katharine Seamans, who visited the garden often during her life. An art installation, created by artist Janet Zweig, pays tribute to Annie by bringing the pattern of the night sky on the day of her birth into the lawn through fiber optic "stars." Seeing kids jump from star to star as they light in the grass – with the beautifully restored fountain in the background - is a joyous park experience.