INTEGRITY IN ACTION
Westminster Plant Healthcare Company
Serving Westminster since 1978.
Ross Tree Company, a long-standing name in Westminster tree care since 1978, has undergone a significant evolution, transitioning from a general tree service business to a specialized plant healthcare company. Our shift represents a fundamental change in philosophy to proactive health and prevention rather than reactive tree services like pruning and removal. We are a licensed tree company with a strong relationship with the Westminster Forester Office, with a reputation for handling complex tree jobs, street closure permitting, and pioneering 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.
Westminster Tree Programs
The City of Westminster Forestry Team works to preserve and promote a healthy, safe, and diverse tree canopy through continuous urban forestry practices and community engagement. Click here for more information about the City of Westminster’s tree programs.
Emerald Ash Borer
Unfortunately, the dreaded Emerald Ash Borer (EAB) arrived in Westminster in 2013, and the beetle continues to spread throughout the City. Untreated trees that show signs of EAB damage will most likely require removal. Westminster’s forester expects all property owners to manage and treat their Ash yard trees. Check out the Ross Tree EAB Handbook to understand your treatment options.
Tri-Level Fertilization Program
Ross Tree’s 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.
Deep Root Feeding
Ross Tree now offers a new tree health care program called Tri-Level Tree Fertilization that better fits trees’ seasonal needs. Since trees are not native to the Denver area, it makes sense that they might need some extra care to thrive here. We are moving to deep root feeding three times a year versus two because Denver’s growing season is getting longer, and we are seeing more tree insects and unique weather events.
Ips Engraver Beetle Outbreak
Ips Beetles are native to Colorado and are now on the move in the Denver area. Their larvae damage spruce and pine trees, so the best time to treat is when the adult males become active in April and May each year. They typically bore into weakened trees to form mating galleries. However, Ips will attack healthy trees in large outbreaks.
Ross Tree Company
Ross Tree is a locally owned and licensed Denver tree company that has been in business since 1978. We offer proactive tree pruning, tree insect control, and plant health care services. Why not call a licensed, insured, trusted tree company with an A+ BBB rating?