The garden sits on the banks of River Slaney which includes an ice age glen, bog garden and arboretum, with view of the Blackstairs Mountains, Wicklow Mountains and Mount Leinster. Some of the oaks are believed to be over 500 years old, and the varying environments provide habitats for diverse set of wildlife. The garden is home to a variety of rare azaleas, rhododendrons, magnolias, as well as wild bluebells and snowdrops. The gardens also feature a Wellingtonia, the Sequoiadendron giganteum or Giant Redwood, which was planted to commemorate the Battle of Waterloo.