Denver Tree Care Services

One of our clients at Mountain High Tree, Lawn and Landscape recently contacted us concerned about the state of his tree.

After a recent hail storm, his beloved Aspen tree looked like it had been attacked by aliens.

Our team at Mountain High Tree & Lawn knew this sounded like a possible case of tree disease, so we offered to come inspect his trees free of charge to identify if something could be done.

At Mountain High Tree & Lawn, we are experts in tree and shrub care, offering tree and shrub disease control, insect and pest control, tree and shrub fertilization, monitoring and regulation, tree pruning and removal and more. In Denver, we service Country Club, Cherry Creek, Belcaro, Washington Park, Sloan Lake, Virginia Village, Berkley, Highlands, Cook Park, Park Hill, Montclair, Lowry, Stapleton and Hampden Heights.

If you think your trees may need some care, or you want to take preventative measures, here’s some helpful information on tree and shrub care.

Tree and Shrub Care in Denver

Effective tree and shrub care ensures that your trees stay hydrated and vibrant. If your tree has dead branches or its leaves are sparse or discolored, call us at Mountain High Tree & Lawn. There’s never a charge for the initial assessment of your trees and shrubs.

Tree and Shrub Diseases

It wasn’t a surprise to us that our client in Cherry Creek discovered that his trees were hurting following a hail storm.

In fact, hail storms can create wounds on trees that serve as direct entry points for diseases. Aspens that are oozing and discolored often have been affected by trunk and leaf fungus.

Fire Blight – caused by bacteria – and Powdery Mildew – a leaf disease – are two diseases often found in the Denver metro area. Cankers is another prevalent disease in the area, which is characterized by vascular cankers that form underneath the bark, stopping water and nutrients from getting through.

Also, if your branches have curved tips and discoloration, that’s often a sign of disease.

Insect and Pest Control

The Emerald Ash Borer, a beetle, that’s was found in Boulder area in November of 2013, is a threat to the rest of the Metro Denver Ash trees- so we dedicated an entire page to it on our website: We have not one, not two, but three different treatments for this pesky insect.

When it comes to Emerald Ash Borers and Ips Engraver Beetles, in particular, it’s all about prevention because once they find a home within your tree, it’s a lot more difficult to control . If you have Ash or Spruce trees, and are worried about these pests, please give us a call. There is no charge for our initial consultation

Aphids, spider mites and other foliage insects, on the other hand, can be more easily controlled and even if they are already present. If the crown of your trees and shrubs – that is, the branches and leaves extending from the trunk or main stems – are thinning, discolored or sticky, these pests may be the problem.

Natural Control Option

For those looking for an insect control that is more environmentally friendly, we have a few options. The Natural Controls utilizes soaps, horticultural oils and biologicals in place of traditional pesticides. These may not be quite as effective, but they ensure you are being friendlier to the surrounding environment. That includes being safe to use around bees.

Environmentally Sensitive Fertilization Programs

We at Mountain High Tree & Lawn also offer fertilization methods that are more eco-conscious.

For example, we have a slow-release nitrogen fertilizer. Not only does this fertilizer ensure your tree is treated for up to two years, but unlike quick release fertilizers, there is no chance of causing unhealthy growth surges. Quick-release fertilizers tend to release before the tree can fully use them, then leach into the soil and groundwater, meaning less treatment for the tree, and possible environmental issues.

Add the fact that we use a natural Mycorrhizae additive – which expands the surface area of roots and allows them to better absorb water and nutrients – and you can be assured that we are giving your trees the best care available.

Supplemental Watering Schedules

The air and soil can be particularly dry in the Denver’s high plains, and winter dehydration is a major reason for tree decline and death, especially for newly planted trees. This is sometimes referred to as winter kill.

Make sure you check the soil moisture around each tree to a depth of about four inches once a month year-round. If the soil feels dry, and does not ball up in your fist, it is likely time to water.

We at Mountain High Tree & Lawn can help. We add Yuccah, a natural soil and water conditioner that helps the water be more efficiently absorbed.

Tree Trunk and Soil Injections

Tree trunk and soil injections are treatment methods for insect and disease control that is a safer to the surrounding environment and oftentimes a more effective alternative to spraying trees.

Bee safer and more effective – ask about our tree trunk and soil injections.

Tree and Shrub Fertilization

As mentioned before, Mountain High Tree & Lawn adds natural fungi such as Mycorrhizae and other bio stimulants to enhance root growth to benefit your trees and shrubs.

We also add helpful nutrients and elements that are generally lacking in Denver’s poor soils, such as iron, zinc, manganese and boron and nitrogen.

If you notice yellowing leaves on your tree, keep in mind this often is a sign of mineral deficiency and should be treated. Call us and find out what we can do.

For more information on our tree and shrub fertilization, check out our dedicated webpage at

Tree and Shrub Monitoring

Careful monitoring is vital to ensuring the safety of your trees and shrubs. Leave it to us at Mountain High Tree & Lawn to catch any problems early.

Early preventative measures will also minimize the use of pesticides for a healthier overall environment.

Tree Growth Regulator

Are you trees getting too large for the space they have? Pruning alone is not always the best option. Mountain High has tree growth regulators that can lessen the growth by between 30 and 60%, and can work for up to three years. Additional benefits is the reallocation of energy into thicker, healthier leaves, and improved root growth. Drought stressed and declining trees also benefit from this treatment.