Home News Weeping Birch Trees in Lethbridge… Weeping Birch Trees in Lethbridge dying Landon Hickok June 16, 2025 0 597 1 minute read The City of Lethbridge says due to multiple factors such as age, disease and climate, many of the weeping birch trees planted 50 to 60 years ago are showing signs of decline. They estimate there are 750 weeping birch trees on public land.