The Hippopotamus is the closest relative to the whale, illustrating how species adapt to environments. Similarly, deciduous trees evolved to drop leaves to conserve water and food in dry climates, helping them thrive globally. Denver’s urban canopy has increased humidity.

The biggest threat to Denver trees isn’t insects or disease—it’s snow on leafed-out trees. Heavy snow in spring or fall can break branches or topple trees, especially those with weak growth or improper pruning. Young trees are especially vulnerable.

South High Street’s tree landscape is changing, with 270 trees lining the public right-of-way. Many aging Silver Maples and American Elms are being replaced with Norway and Sugar Maples. Get an expert opinion from DLC.

Denver’s trees were all planted, as the city was once treeless except for streamside cottonwoods. Washington Park has over 70 species, including historic American Elms. City arborists promote tree diversity—call DLC Arbor for expert advice.

Remember junior high biology? Trees have three parts: roots, trunk, and crown. Each year, they grow in height and spread by adding new growth to branch twigs.