Make Bigger Impact
Join as a Thornhill Society or President’s Council member and enjoy exclusive benefits, such as access to the Arboretum without timed-entry member passes.
Unlimited visits for up to 10 individuals age 2 and older at a time, free of charge. Weekday access without timed-entry passes. Partners support the Arboretum’s tree science, conservation, and education at a level that helps advance its mission to plant and protect trees.
Partner Membership
$500 per year
One-year membership
In addition to the member benefits
listed below.
Acorn Express tram tour vouchers
at the Ginkgo Restaurant and Café
at The Arboretum Store
for Summer Science Camp
for select private and public events
to special donor events
of your support in the Perennial Report
to Greenmatters, the donor newsletter
All memberships also enjoy the following benefits:
630-719-2453
to ArbConnect and More Than A Walk In The Woods e-newsletters
at the Sterling Morton Library
at more than 340 arboreta and botanical gardens across North America
on bicycle, snowshoe, and cross-country skis (subject to availability)
from 7:00 a.m. to 9:00 a.m. daily, members have exclusive access to the grounds
Earn points toward a free small drink or pastry with every visit
Join as a Thornhill Society or President’s Council member and enjoy exclusive benefits, such as access to the Arboretum without timed-entry member passes.