Join and Support

Giving Societies

Support The Morton Arboretum’s work to create a greener, healthier, more beautiful world where people and trees thrive together.

Your Support is Vital for the Arboretum’s Second Century

For more than a century, The Morton Arboretum has grown and flourished thanks to donors who appreciate the essential role trees play in the health of our plant and in our personal well-being. Your contributions ensure the Arboretum remains a cherished place of enjoyment and respite, where trees and people thrive together. Consider extending your support throughout the year by giving monthly.

Give monthly

$500-$1,499

Tree Advocate

Show your commitment to the Arboretum’s mission by joining as a Tree Advocate-level member. Includes free daily admission for up to 10 individuals aged 4 and older. Divide your gift into monthly payments of $41 to extend your generosity across the year.

Benefits and giving

$1,500-$2,499

Thornhill Circle

Join the Thornhill Society, the Arboretum’s annual giving society, and demonstrate that you share The Morton Arboretum’s vision of a greener, healthier, more beautiful world where trees and people thrive together. Includes unlimited visits for yourself and any accompanying guests, free of charge. Divide your gift into monthly payments of $125 to extend your generosity across the year.

Benefits and giving

$2,500-$4,999

Elm Circle

Help preserve the Arboretum as a landmark destination and a center for tree expertise, inspiring the world to plant and protect trees. The Elm Circle level of the Thornhill Society entitles you to VIP access and privileges in appreciation for your high level of support, including unlimited visits for yourself and any accompanying guests. Divide your gift into monthly payments of $208 to extend your generosity across the year.

Benefits and giving

$5,000-$9,999

Hawthorn Circle

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 spread your generosity across the year.

Benefits and giving

$10,000 and above

Oak Circle

As an Oak Circle member of the President’s Council, you stand with the Arboretum in facing the challenge of climate change, researching urgent questions in tree science, and advocating for the care and protection of trees across the globe. The President’s Council is a community of philanthropists propelling the Arboretum and its mission forward. At this level, you may choose to designate your gift to a program of greatest importance to you. Visit whenever you’d like without reservations, and bring unlimited guests each time you visit. Divide your gift into monthly payments of $833 to extend your generosity across the year.

Benefits and giving

More Ways to Support

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