VISIT & explore

Donor Events

These events are limited 

The Thornhill Mansion with snow
On February 22, 2018, Arborvitae and Thornhill Society members are invited to join Arboretum President and CEO Gerard T. Donnelly, PhD, for an inside view of progress, current projects, and future plans.
A 4,000-square-foot white tent at dusk
Save the date for the 2018 Growing Brilliantly Dinner Party on Saturday, September 29, 2018!