Denver Tree Company

Denver residential and commercial property owners have counted on Ross Tree as their go-to tree company since 1978. Ross Tree is a licensed tree company with a strong relationship with the Denver Forester Office. We prune trees to their dominant leader to encourage strong branch growth and remove any hazardous damaged, weak, or dead limbs. Denver’s City Forester does expect property owners with Ash to manage their trees against the Emerald Ash Borer. Click here to understand your EAB treatment options. For an appointment, click here to fill out a request service form or call 303-871-9121.

Trees in Denver

The City of Denver offers many tree programs for its citizens. Their forestry website defines homeowners’ tree responsibilities and lists notable trees growing in Denver neighborhoods. Click here for more information about the City of Denver’s tree programs.

large tree job expertise in Denver

Large Tree Job Expertise

Ross Tree embraces standards-based tree pruning services to assure quality results and job safety, as defined by the International Society of Arboriculture. We have the staff, equipment, and expertise to remove the largest trees found in Denver, and we are known for our ability to handle jobs in tight places or next to busy streets. Click here to view our Handbook on Large Tree Service Jobs.


elm leaf beetle treatment denver

Elm Leaf Beetles

Wet springs support large Elm Leaf Beetle populations that cause much damage to Elm trees in Denver. Highly skeletonized trees turn brown and are unsightly. Click here for more information about Elm Leaf Beetles and other Elm tree pests.


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Pine Tree Care in Denver

Denver has eleven conifers tree species that grow naturally here. Norway spruce, Scotch pine, Arborvitae, and Austrian pines are popular trees in Denver but not native to Colorado. Check out our Pine Tree Care Handbook for more information about these trees and how to keep them healthy.

winter tree care in Englewood

How to Get Your Trees Ready for Winter

The Denver area’s unpredictable weather and arid climate are tough on trees. The most popular late fall and winter tree services are deep root wateringwinter pruningFire Blight treatment, and dormant oil spraying. For more information about these services, please check out our Winter Tree Care Handbook.

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Pine Tree Care Handbook

How Do I Keep My Evergreen Trees Healthy In Denver? Ross Tree publishes handbooks on key tree issues common to the Denver area. The Pine Tree Care Handbook identifies pines and other conifers that grow here and the insects and diseases that inflict them. Colorado has...

Winter Tree Care Handbook

Close of the Year Tree Services Ross Tree, a local tree company in business since 1978, operates twelve months of the year and provides fall and winter tree care services throughout the Denver area. The most popular late fall and winter tree services are deep root...

Tree Pests to Watch Out for in August in Denver

This August, two tree pests are having a field day in Denver - the Elm Leaf Beetle and the Honeylocust Spider Mite. Our wet spring set up conditions for the Elm Leaf Beetle to thrive and attack Elms across the city. Consecutive 90 degree days this summer is perfect...

How Do I Get My Trees Ready For The Summer?

Summer Tree Care Tips As Ross Tree's General Manager explains in the video below, summer is an excellent time to get your trees ready to withstand Denver's unpredictable weather. He recommends increasing deep rooting feeding to at least two times during the growing...

What to do after planting a new tree?

Newly Planted Tree Care Tips Wondering what to do after planting a new tree? Below are some tips after the tree is in the ground. For the last 35 years, Denver Digs Trees has been a significant force in expanding the City’s urban forest by providing more than 60,000...

Preparing Trees for Denver’s Heavy Spring Snowstorms

Channel 9 News recently ran a story on "How To Remove Snow From Your Trees During An April Storm." After the spat of snowstorms Denver experienced in March and April, many homeowners wished they had hired a professional tree company for winter tree pruning to avoid...

Emerald Ash Borer Handbook

The Emerald Ash Borer Is Here to Stay To help our customers, Ross Tree, a locally owned and operated Denver tree company, created an Emerald Ash Borer Handbook to inform home and business owners about this troublesome iridescent green beetle. The Emerald Ash Borer...

Sometimes It is Best to Call a Professional Tree Company

Large Cottonwood Tree Removal  Tree removals next to homes, sheds, garages, fences, and streets need special care. Large trees are heavy, and when cut down, sometimes fall unpredictably, which is dangerous. Ross Tree, a Denver-based tree company, is known for pruning...

Ask a Professional – Why Use Systemic Products to Control Tree Pests?

Systemic Tree Injections  Ross Tree, a leading innovator in tree insect control, recommends tree systemic injections to control tree insects. We were the first tree company in Denver to offer tree injections, a practicable alternative to spraying trees. Using...

A Short Guide to Aspen Trees and Their Care

How to Care For Your Aspen Trees Colorado has a higher percentage of the species growing within its borders than any other state. Aspens thrive in higher elevations. Planting these trees in Denver with our heavy clay soils and hot lowland weather takes its toll,...

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