INTEGRITY IN ACTION
Highlands Ranch Plant Healthcare Company
Serving Highlands Ranch since 1978.
Ross Tree Company, a long-standing name in Highlands Ranch tree care since 1978, has grown from a general tree service business into a plant healthcare company, with the focus on keeping trees healthy before they need heavy pruning or removal. Our two ISA-certified arborists start with tree health: diagnosing pests and disease, treating ash trees for emerald ash borer, and feeding stressed trees before they decline. Pruning comes next, and removal when a tree can’t be saved. We handle complex jobs, including street closure permitting, and we pioneered systemic injections to control tree insects. We strongly embrace standards-based pruning practices, which save our customers money in the long term. Why not call a licensed, insured, trusted tree and plant healthcare company with an A+ BBB rating? For convenience, we accept all major credit cards. Click the request service button above to fill out a request tree service form or call 303-871-9121.
Keep Informed About Trees
Ross Tree believes in educating its customers about tree and plant healthcare. Our general manager, an ISA-certified arborist, has over 30 video blogs on YouTube. Homeowners use the Ross Tree Insect Calendar to identify pests munching on their yard trees. We have posted over 80 blogs about trees on our website since 2019. Ross Tree sends out a quarterly email newsletter to its customers.
Highlands Ranch Tree Programs
Highlands Ranch supports a thriving urban forest by maintaining the health of existing trees, fighting tree-related diseases, recycling trees and limbs, and running a Tree Planting Program and annual Arbor Day activities. Click here for more information about the Highlands Ranch’s tree programs.
Emerald Ash Borer
Unfortunately, the dreaded Emerald Ash Borer (EAB) is present across the Denver metro area, and the beetle continues to spread. Untreated trees are starting to show signs of EAB damage and will most likely require removal. Property owners are generally responsible for managing and treating the ash trees on their own property. Check out the Ross Tree EAB Handbook to understand your treatment options.
Tri-Level Fertilization Program
Ross Tree started its popular Tri-Level Fertilization Program in 2024. We use proprietary feeding formulations to help trees flourish in Denver’s arid climate and poor soils. The program has three feedings per year rather than two.
Highlands Ranch Tree Services
We work in the order that usually serves a tree best: health first, then pruning, then removal.
Plant Health Care
Our arborists diagnose pests, disease, and soil problems, then treat them. That includes emerald ash borer treatment, systemic injections, and deep root feeding.
Tree Pruning
Standards-based pruning removes deadwood, reduces risk, and keeps the tree’s structure sound without over-cutting it.
Tree Removal
When a tree is dead, hazardous, or too far gone to save, we remove it, including large trees near homes. We handle street closure permitting when a job needs it.
Which Day Do We Work Your Neighborhood?
Our estimating arborist visits each part of the Denver metro on a set weekday, based on ZIP code. In Highlands Ranch:
Monday: 80126, 80130
Friday: 80129
Not sure of your ZIP? See the ZIP code lookup, or request a complimentary estimate and the form will show your next available dates.
Highlands Ranch Frequently Asked Questions
Who is responsible for the tree between the sidewalk and the street?
Who maintains the strip between the sidewalk and the street varies by neighborhood. Check with your HOA or metro district before pruning or removing a tree there, and call us if you want an arborist’s opinion on its health first.
Should I treat or remove my ash tree?
Emerald ash borer is present across the Denver metro area. Ash trees that still have a mostly full canopy can usually be saved with treatment. Trees that have already lost much of their canopy are usually better removed. Our arborist can tell you which applies on a complimentary visit. The Ross Tree EAB Handbook explains your options.
Are you licensed and insured?
Yes. Ross Tree is licensed, insured, and BBB A+ rated, with two ISA-certified arborists on staff. Our guide on how to choose a tree service lists what to check with any company.
How do I schedule an estimate?
Use the request service form or call 303-871-9121. You don’t need to be home for the visit.
Nearby Areas We Serve
Ross Tree also works in Castle Rock, Littleton, Centennial, Lone Tree, and Parker.
Request Service — Ross Tree
What To Do After Planting A New Tree?
Wondering what to do after planting a new tree? Below are some tips after the tree is in the ground. Trees beautify our neighborhoods, improve air and water quality, enhance property values, and lower utility costs. The following newly planted tree care tips will keep them healthy.
Evergreen Tree Care
Evergreen trees and shrubs are an excellent option for any yard because they need less maintenance than many leafed trees, provide color all year long, give privacy, and are hardy. However, coniferous trees require different care than deciduous varieties.
Ross Tree Company
Ross Tree is a locally owned and licensed Denver tree company that has been in business since 1978. We offer tree pruning, tree insect control, and plant health care services. Why not call a licensed, insured, trusted tree company with an A+ BBB rating?