P4C Tree Remeasuring at Applewood Heights S.S.

Thanks to the students who remeasured the trees at Applewood Heights S.S. in Mississauga on Sept. 26th, 2014. The trees were planted in 2008 and some trees are now considered “mature trees” (over 4 cm in diameter at 1.3m).


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December 2021 Newsletter

You can download our latest newsletter in PDF format here: From Our President – Alice Casselman It has been a challenging yet wonderful year! What

Ontario’s Own Heritage Red Oak

Written by ACER executive board member Elizabeth MacLean, with a tree planting guide by ACER founding president Alice Casselman. Ontario has its own celebrated oak

Forge Ahead with TreeTrackers.ca

Written by ACER executive board member Elizabeth MacLean. “The sky’s the limit,” said Fazal Khan in an August on-line preview presentation of the TreeTrackers.ca website to ACER