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.

The Ailanthus altissima, or "Tree from Hell," is invasive, fast-growing, and tough to remove. DLC Arbor faced a brutal two-week battle with a stump embedded in rebar and concrete. Need expert tree removal? Call us today.

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.

Monoculture tree plantings can have long-term issues. Silver maples, with soft bark and wood, are prone to fungal infections and wood rot, making them unstable. Large branches may break unexpectedly. If a silver maple leans, removal is essential for safety.

Radio ads about emerald ash borer (EAB) treatments are common, signaling both a growing threat to ash trees and a profit opportunity. In Boulder, EAB has been found, but the infestation hasn't spread far. Treating ash trees with insecticides is crucial for protection.

Trees enhance neighborhoods, provide shade, and add value to homes—up to 10% of property value. Denver’s trees are worth $2.6–$5.2B! Infestations like EAB threaten them. Stay informed and protect your trees.

May’s heavy hail and wind broke branches and toppled trees across Denver, as leafed-out trees trapped hail. Pruning, like DLC Arbor did for an East Washington Park Silver Maple, prevents storm damage. Trim trees every five years to avoid cleanup.

The emerald ash borer (EAB), found in Boulder in 2013, threatens Colorado’s 1.4 million urban ash trees. It has killed millions in the U.S. and is now in Superior. Stay updated via the Colorado Department of Agriculture’s EAB website and zone map.