Spadina pilot: Compaction and salt are two things Toronto #StreetTrees must endure. Engineered soil is designed to optimize the availability of water and oxygen, as well as improve drainage to remove salts and other toxins. Developed in partnership with @TRCA_HQ #UrbanForest pic.twitter.com/FXwl6NenPl

— Toronto Forestry (@TOtrees) July 15, 2019