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Get Expert Tree Advice from ISA-Certified Arborists

Have a question about your trees, shrubs, or general plant health? Our ISA-Certified Arborists are standing by with the answers. Whether you’re worried about a tree’s safety, wondering about the signs of root damage, or looking for tips on planting and species selection, we can provide expert advice backed by decades of knowledge to help you reach your goals.

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Knothead Tree and Lawn Care | Certified Arborist ISA

How It Works

Submit Your Tree Care Question

Use the form below to ask anything related to tree care, safety, maintenance, or planning.

Hear Back from an ISA-Certified Arborist

One of our ISA-Certified Arborists will respond directly to your question, providing helpful insights and next steps. If your question requires a closer look, we’ll help you schedule an on-site visit for a free evaluation.

Keep Your Trees Healthy with Knothead

Knothead offers personalized, science-based tree care services to keep your landscape healthy, beautiful, and safe year-round. From deep root fertilization and disease treatments to cabling, pruning, and tree removal, we have the expert solutions to keep your landscape thriving.

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Stay in the know and GROW!

Fill out the form below with your question and:

Provide necessary context. If you’re wondering if your tree is dying or in need of intervention, include any symptoms of tree health decline that you’ve noticed.
Include pictures of your tree. A visual reference can help us understand and answer your question.
Ask anything! No question goes unanswered. Whether it’s a very specific or a broad question about tree care, we’ll always provide an expert response and professional support.

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Testimonials

Real Stories from Your Neighbors

Company truck | Knothead Tree and Lawn Care

    
 
 
         
   Katie Cullum 
 
 
 
 Trustindex verifies that the original source of the review is Google. The Knothead crew have helped me with a few tree trimmings this spring as well as tree limb removal from snow damage, even referring me to a stump grinder for a few dead bushes. They were respectful and efficient and actually showed up when they said they would! I would recommend their services ~ 5 stars!
  
 
        
   Lura Wolfe 
 
 
 
 Trustindex verifies that the original source of the review is Google. Knothead Tree Care visited The Indian Park Schoolhouse and trimmed our huge old trees with care.  They understood the need to trim the dead branches while still caring for the tree.  They were fast, efficient, but most of all careful of the trees.
  
 
        
   Christina Young 
 
 
 
 Trustindex verifies that the original source of the review is Google. Grant and AJ are very pleasent to work with,  have been trusting, hard working, helpful and kind. I would trust them with any of my tree needs. You can't go wrong!!
  
 
        
   Dwight D 
 
 
 
 Trustindex verifies that the original source of the review is Google. Grant and Andy did a superb job on our tall pine, cleaning up broken limbs from heavy shows. Very professional and well equipped.
  
 
        
   Stephen Berry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Andy and Darrin are the definitive example of stellar customer service. I would give 6 stars if I could!
  
 
        
   Anne Wattenberg 
 
 
 
 Trustindex verifies that the original source of the review is Google. Knothead, Brett’s team has been taking care of our trees for 15 years and has gone above and beyond to keep them heathy and looking beautiful!
  
 
        
   Larry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Greg, Garrett, and Alex from Knothead did really great work removing a large 40+ year-old foxtail pine that had succumbed to a faulty watering system and extreme drought conditions. They were remarkably efficient and cleaned up everything when the job was done. We will definitely use their services again--highly recommend.
  
 
        
   Rich Colaiano 
 
 
 
 Trustindex verifies that the original source of the review is Google. I just had our trees sprayed for the second time, this company, and these people, Aaron and AJ, have saved my trees. We were told by another arborist that our trees were going to die, and there was nothing we could do about it. This company‘s arborist came out and told us what to do to save our trees, we did what he told us to do, and they did what they said they were going to do. And saved all our trees thanks again. Highly recommended. Also reasonably priced for the work they do.
  
 
        
   george majors 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you Andy, Joseph, and Ken, for the removal of our Dead Pine tree and the trimming of another Pine tree, in our Champions Court Community here in Castle Rock Good Job Guys
  
 
        
   Gael Barker 
 
 
 
 Trustindex verifies that the original source of the review is Google. Knothead Tree and Lawncare is a must have in our CO climate.  We have used them for years.  Everyone is personable, helpful, true to schedules set.  Brett, the owner is a certified arborist with an enormous amount of knowledge.  He is always available for questions or to stop by and advise on a problem.  His integrity is beyond reproach and is sensitive to budget constraints.  I can't say enough about this great company and urge you to call for all your tree, bush, lawn care needs you will not be disappointed. Happy in Larkspur
  
 
  
 
  
 
   Google rating score: 5.0 of 5, based on 28 reviews

You Asked, We Answered

See questions from other clients that our ISA-Certified Arborists have helped:

Which trees grow best in high altitudes?

Many tree species are well adapted to high-altitude climates, including Colorado blue spruce, ponderosa and bristlecone pines, quaking aspen, and other native shrub species.

Do I need a permit to remove a tree in Castle Rock?

Trees on private property in Castle Rock usually do not require a permit for removal. However, if you live in an HOA community, your rules may restrict tree removal. Check with your local municipality or HOA before scheduling a tree removal.

Are my trees at risk from emerald ash borer in Douglas County?

Yes, the emerald ash borer is prevalent in Douglas County and beyond. If you have ash trees on your property, have them inspected for this invasive beetle.

When is the best time to prune trees along the Front Range?

Late winter to early spring is ideal for most trees. These are the best seasons for reducing stress and minimizing exposure to pests and diseases.

How does Colorado’s dry climate affect my trees’ watering needs?

Many tree species in Colorado require supplemental watering, especially during dry winters and hot summers. Deep, infrequent watering is best.

Protect Your Property With Knothead Tree and Lawn Care

Founded in 2008, Knothead delivers honest, expert tree care services to homeowners and property managers across Castle Rock, Denver, Aurora, and surrounding communities. Family-owned, ISA-Certified, and rooted in more than 30 years of arboriculture experience, our team is committed to protecting the natural beauty of your trees, shrubs, and lawns.

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