The Morton Arboretum has grown and flourished for 100 years with the generous help of donors who care about trees, people, and communities. With your generous contribution, the Arboretum will remain a cherished place of enjoyment and respite, where trees and nature provide joy and rejuvenate the spirit of all who visit. In addition, your gift helps the Arboretum maintain important tree collections and beautiful natural landscapes, offer nature-based learning for all ages, and pursue its tree-focused mission as a world-renowned leader in tree science and conservation. Maximize your impact by giving monthly.

At the Hawthorn Circle level of the Thornhill Society, you will support the Arboretum’s role as a leading advocate for trees as it works with homeowners, civic leaders, public officials, and green industry professionals. The Arboretum recognizes your generosity with invitations to exclusive programs, previews, and tours, as well as unlimited visits and accompanying guests. Divide your gift into monthly payments of $416 to continue your impact.

When you join the Thornhill Circle of the Thornhill Society, you demonstrate that you share The Morton Arboretum’s vision as a leading center of tree expertise, inspiring the world to plant and protect trees. Includes unlimited visits and accompanying guests, free of charge. Divide your gift into monthly payments of $125 to continue your impact.

Friend members show their support for The Morton Arboretum’s science, conservation, and other programs. Show your support and gain access to enhanced benefits and privileges, including unlimited visits for up to eight individuals age 4 and older at a time, free of charge. Divide your gift into monthly payments of $25 to continue your impact.