Thornton
DONOVAN ARBORISTS
We offer free estimates for tree planting, pruning, removal, cabling and bracing. We also specialize in trimming, transplanting and fertilizing shrubs and bushes. Contact us now, we are ready to help you.
Holistic Approach
We have the experience and knowledge to help you grow healthy trees and shrubs.
Free Estimates
We offer free estimates for tree planting, trimming, removal, cabling and bracing.
Certified Arborists
Our ISA Certified Arborists ensure that you get the highest quality tree care.
Tree Services in Thornton, Colorado
Plant Healthcare, Integrated Pest Management (IPM), and Emerald Ash Borer Treatment
Plant Health Care - Fertilizing and Tree Spraying
We believe in being proactive in preventing insect infestations and disease outbreaks in our customer’s trees and shrubs. This starts with identifying the pest risk for plants before it becomes an overwhelming issue.
Emerald Ash Borer
Emerald Ash Borer has killed 10s of millions of Ash tree in 21 states. We have many different treatment options to protect your Ash trees.
Integrated Pest Management (IPM) and Disease Control
We believe in being proactive in preventing insect infestations and disease outbreaks in trees and shrubs. We assess the pest situation to ensure action is taken as soon as possible to prevent further outbreak.
Services We Provide
Visit the link below to see a complete list of the services we offer.
Visit our Treeology Blog for more information:
The Science of Fall Color
If you’ve ever wondered why some leaves turn red while others turn orange, yellow, or brown—or stay green all year long—the answer hides just below the surface. The leaves, you see, aren’t naturally green at all.
Winter Watering Keeps Trees Healthy and Happy
Trees are living organisms that need nutrition all year round. Even in the dead of winter your trees and shrubs are busy underground, growing and storing food and energy for springtime emergence.
A 2018 Guide for Cutting Your Own Christmas Tree in Colorado
Did you know that by cutting your own Christmas tree (or Hanukah bush or Festivus pole) you‘re actually helping with forest management? Thinning forests lets sunlight reach deeper into the canopy, encouraging new, more diverse growth and reducing competition for nutrients.