Become a member or renew your membership today!



​The Thielke Arboretum of Glen Rock depends solely on donations and volunteers to operate, preserve, and maintain the arboretum. ​​Your membership​ supports:
  • Conservation of the 16 acre property that contains forests, gardens, wetlands, a spring fed pond, and hiking trails.
  • Special care for our growing tree collection.  We have 125 tree species and counting.
  • Enhancement and restoration of our natural gardens that support native pollinators. 
  • Science and nature programs for school groups and scouts.
  • Activities and workshops for all, from kindergarteners to Master Gardeners.
  • Volunteer programs that inspire stewardship in our community.



​See membership levels and benefits below.

Membership Levels and Benefits

Basic Benefits for all members:
  • Discounts on Thielke Arboretum-created programs, workshops, and public events.
  • Rental privileges to the Thielke Arboretum Grounds (gazebo and pond area).
  • Invitation to member-only programs and events.
  • The knowledge that you are making a difference in the community.
Senior $25 
  • Basic Benefits for the Member (not transferable to other family members)
  • 30% Discount on Events
Individual $50 
  • ​Basic Benefits
  • 30% Discount on Events
Family $100 
  • Basic Benefits
  • 30% Discount on Events
  • ​Rental privileges to the Thomas Vielbig and Thomas Scerbo Environmental Education Center
Sustaining $200
  • The Sustaining membership level is for members who have an ongoing commitment to the Stewardship of the Thielke Arboretum
  • Includes all membership benefits