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DLC Arbor Blog

Anatomy of the Tree

Anatomy of the Tree

Anatomy of the Tree Lets take you back to your first biology class in junior high school. In the botany section , trees were discussed. A tree has three parts: roots, trunk and crown. Trees grow each year in height and span by adding on new growth in branch twigs....

Cottonwoods in Denver

Cottonwoods in Denver

Cottonwood trees grow along mountain and grassland streams in Colorado. Cottonwoods grow fast, which made them popular to plant in the 1970s and 1980s in new subdivisions to create shade. There were two characteristics that property owners did not consider back then....

Am I Missing Something?

Am I Missing Something?

The heavy hail and winds this May broke branches and toppled trees across the city. The heavy hail was able to accumulate on the branches since most trees in Denver had leafed out. Weak branches snapped and fell into the yards and streets across the city. It would be...

Emerald Ash Borer Update

Emerald Ash Borer Update

The emerald ash borer (EAB) was discovered in Boulder County in September 2013. This created great concern in Colorado because the EAB is responsible for the deaths of tens of millions of ash trees in the eastern half of the U.S. Ash trees make up about 15 percent of...

Denver’s Spring Snow Storms

Denver’s Spring Snow Storms

Denver is known for its early spring and winter snow storms. It is a beautiful sunny day, then it snows. Some of Denver’s biggest snow storms occur in late spring or early winter. Snow tree damage is greater when trees leafed out. The leafs catch the snow and the...

My Favorite Trees in Denver – Western Catalpa

My Favorite Trees in Denver – Western Catalpa

Bignoniaceae The Western Catalpa is part of the Bignoniaceae family which is known for its showy flowers. Being from the South, I remember walking in a Washington Park on a nice early summer day about 25 years ago and noticing a large tree covered in white flowers. I...

Denver A City Of Trees – That’s Not Natural

Denver A City Of Trees – That’s Not Natural

Denver was settled in the early 1850s on a high plain grassland. There were no trees then besides the cottonwoods growing along streams flowing through the city. The trees you seen now in Denver were planted. Denver’s dry climate allows American Elms to survive with...

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