Arboretum Expo: Tree Day! + Plant Sale

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Saturday, September 6th, 2025 - Arboretum Expo: Tree Day + Plant Sale

A community celebration of trees and the many exciting things happening in the Arboretum lands! Join us for tours of the grounds, trails, gardens, research projects, tree climbing demonstrations, and an in-person plant sale. Take home an interesting woody plant, grown in the Arboretum greenhouse and tended to by our dedicated staff and volunteers.

The Arboretum Expo will be held on the West Lawn, the Park and in The Arboretum Centre, with announcements and performances at the Gazebo

Gazebo Events and Performances
Professor Pricklethorn	Learn to see trees through the Professor’s eyes and his green-coloured lenses and you will see the environment around you in a very different way. Trees are not just outdoor furniture for us to use. If we learn to respect and care for trees then they can help us and the global environment in countless ways. Professor Pricklethorn wants to help teachers, parents, and children learn how to make the connection between science and everyday life by learning about the many good things that trees do for us every single day.
GUFF Henry Kock Tree Stewardship Award	Henry Kock Stewardship Award- Henry was known for his dedication to growing, protecting and advocating for trees and their natural environment. In his work at the Arb, he developed many programs including the Elm Recovery Program. Henry was cherished for his wisdom, integrity and mentorship, and each year we honour another member of our community who embodies these characteristics in their stewardship of our trees. Join us for the announcement of the 2025 winner and presentation of the Award Certificate.
Elderly Brothers Garage Band	Join us for a live musical performance of the Elderly Brothers Garage Band! A little bit classic country and a little bit of rock ‘n’ roll. We’ll have you leaving with a smile on your face and a tune in your heart.

Gazebo Events and Performances

Professor Pricklethorn

Learn to see trees through the Professor’s eyes and his green-coloured lenses and you will see the environment around you in a very different way. Trees are not just outdoor furniture for us to use. If we learn to respect and care for trees then they can help us and the global environment in countless ways.

Professor Pricklethorn wants to help teachers, parents, and children learn how to make the connection between science and everyday life by learning about the many good things that trees do for us every single day.

GUFF Henry Kock Tree Stewardship Award

Henry Kock Stewardship Award- Henry was known for his dedication to growing, protecting and advocating for trees and their natural environment. In his work at the Arb, he developed many programs including the Elm Recovery Program. Henry was cherished for his wisdom, integrity and mentorship, and each year we honour another member of our community who embodies these characteristics in their stewardship of our trees. Join us for the announcement of the 2025 winner and presentation of the Award Certificate.

Elderly Brothers Garage Band

Join us for a live musical performance of the Elderly Brothers Garage Band! A little bit classic country and a little bit of rock ‘n’ roll. We’ll have you leaving with a smile on your face and a tune in your heart.

All Day Booths and Activities (10am to 3pm) in the Arboretum Centre / West Lawn
The Arboretum Plant Sale	The Arboretum Naturalists Table
Guelph Wellington Master Gardeners	The Guelph Hiking Trail Club
Honey Bee Education & Honey Sales	Guelph Urban Forest Friends (GUFF)
Yorklands Greenhub	Guelph Centre for Urban Organic Farming (GCUOF)
City of Guelph Healthy Landscapes	Wildlife Preservation Canada
Nokom's House	BIPOC Gear Library
Tree Trust	Forest History Ontario
Pollination Guelph	The Guelph Public Library Bookmobile
Seniors for Climate Action Now	Third Beaver Scouts