Highlands Ranch was built out primarily between the mid-1980s and early 2000s. The trees planted during that development window are now anywhere from 25 to 40 years old. That puts a significant portion of the community’s residential canopy at a crossroads that most homeowners haven’t thought about yet.
This isn’t a maintenance conversation. It’s a longevity conversation.
Ash Trees in Highlands Ranch Are on a Clock
Ash trees were one of the most commonly planted species throughout Highlands Ranch during its development years. They were a reliable choice — adaptable, fast growing and visually consistent across streetscapes and back yards alike. But emerald ash borer, the invasive beetle that has decimated ash populations across the country, has been confirmed in the Denver metro area and is moving through Douglas County.
An ash tree showing no visible symptoms today can be in serious decline within two to three years of initial infestation. Professional tree trimming in Highlands Ranch is one part of a broader response, but it works hand in hand with a tree assessment that can identify early stress signals before they become irreversible. Homeowners with ash trees on their property should be having this conversation now, not after visible decline sets in.
What 30 Years of Growth Does to a Residential Tree
Trees planted in the 1980s and 90s throughout Highlands Ranch have had three decades to develop, and not all of that development has been guided. Many have grown through multiple ownership cycles with inconsistent trimming histories. The result in a lot of cases is canopy that has expanded without the kind of periodic correction that keeps branch architecture sound.
At this age, trees don’t respond to trimming the same way younger trees do. The goal shifts from shaping growth to managing what’s already there. Identifying which branches are load-bearing, which are in decline and which represent a risk to structures requires a different level of evaluation than routine seasonal trimming.
The Cost of Waiting
A tree that receives consistent, measured trimming throughout its life is a fundamentally different proposition than one that gets addressed reactively. In Highlands Ranch, where lot sizes and landscaping investments are significant, the financial case for regular tree trimming is straightforward. A trimming visit costs a fraction of what emergency work or full removal runs.
More importantly, some of what gets lost when a neglected mature tree finally fails cannot be replaced on any reasonable timeline. A 35-year-old shade tree takes 35 years to grow back.
Tree Assessments as the Starting Point
For Highlands Ranch homeowners who aren’t sure where their trees stand, a professional tree assessment is the right first move before any trimming scope is set. Eden Tree Care’s certified arborists evaluate overall tree health, identify species-specific concerns like emerald ash borer susceptibility, and build a trimming recommendation around what each tree actually needs rather than a standard package.
If you have ash trees, mature maples or established spruce on your property, this spring is the right time to get eyes on them. Contact Eden Tree Care for a free estimate and find out where your trees stand before the growing season is underway.