Make a Bigger Impact
By joining the Thornhill Society, the Arboretum’s annual leadership giving society, you elevate the impact of the Arboretum to create a greener, healthier, and more beautiful world where people and trees thrive together.
Unlimited visits and guests. Thornhill Society members, the Arboretum’s annual leadership giving society, elevate the impact of the Arboretum to create a greener, healthier, more beautiful world where people and trees thrive together.
Thornhill Society
$1,500 per year
One-year membership
In addition to the member benefits
listed below.
without purchasing general admission tickets
for friends and family when entering with you
Acorn Express tram tour vouchers
at the Ginkgo Restaurant and Café
Tails on the Trails and Dog Admission Days
in The Arboretum Store
for Summer Science Camps and education classes
free and ticketed event opportunities
in the Perennial Report and on the Visitor Center donor panel
to Greenmatters, the exclusive donor newsletter
All memberships also enjoy the following benefits:
by showing your physical or digital membership card at the gatehouse
630-719-2453
to ArbConnect and More Than A Walk In The Woods e-newsletters
at the Sterling Morton Library
at more than 360 arboreta and botanical gardens across North America
on 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
By joining the Thornhill Society, the Arboretum’s annual leadership giving society, you elevate the impact of the Arboretum to create a greener, healthier, and more beautiful world where people and trees thrive together.