September 2016

Are You Ready For Fall?

September, what a great month! The weather is usually beautiful making September the perfect month to start getting ready for fall. Leaves are starting to turn colors, lawns and trees are starting to go dormant. That makes this the perfect time to get those fall fertilization’s done, ensuring that your lawn is ready for spring. It is also a time when you should look at getting your trees pruned before winter hits. Fall is one of our busiest times for pruning, so call now for your free estimate.

We hope that you all enjoy the rest of your summer! From all of us at MHTree, have a safe and happy Labor Day weekend!


The summer of 2016 has been hot. In fact, since April 1st, only 5 days have not been above the average high for Denver. Furthermore, we have had 50 days of above 90 degree temperatures. The cumulative stress to our trees, shrubs and flowers has been dramatic. We have seen everything this summer from high rates of mortality in new landscapes to extensive leaf scorch in large established trees.

Through summers like 2016, it becomes increasingly important to prepare your landscape for whatever the Colorado weather can throw at it. Here are some tips to help you throughout the spring, summer, fall and winter.

  • When planning a new landscape be sure to choose the right plant for each location. Consider the amount of sunlight it will be exposed to, the amount of protection it will receive from other plants, the exposure to the wind, and quality of the soil.
  • Design an irrigation system that is flexible enough to supply the specific needs of each plant type in the landscape. Zones should be separated by grouping plants with similar water needs.
  • Know your plant material and the specific needs of each species. For example, some trees should be pruned in the dormant season to avoid complications from diseases.
  • Monitor your landscapes throughout the growing season on a regular basis to detect abnormalities or deficiencies in leaf tissue, and follow pest pressure.
  • Monitor weather conditions such as rainfall so you can adjust your irrigation when conditions dictate.
  • Water your trees and shrubs in the winter when conditions are dry and temperatures are mild. 

Your landscape is a big investment and requires care, patience, vigilance, and knowledge. At times it can be frustrating and difficult, but the payoff is a peaceful environment that can be enjoyed for decades.


Fall lawn Care and Watering:
As we enter fall, many people back off on lawn care.  The summer is over, the grass is not growing as fast, and we have longer and cooler nights.  It is time to start thinking about getting kids to school, and even breaking out the ski equipment to get ready for snow fall which is only a couple of short months away!  The problem is, fall is a key time for lawn health and ignoring it puts your grass at risk for not only the winter months, but also the following spring.
Consider what Dr. Tony Koski, Turf Specialist at Colorado State University say about watering lawns in the fall:

“Lawn watering is often stopped in early fall. Conventional thinking is that because ET (evapo-transpiration) rates are low and the turf isn’t growing much, it is OK to stop watering. However, historic ET and rainfall data for most of Colorado shows a need of 0.5 to 0.75 inch of irrigation per week during September and October.

While mowing isn’t needed as frequently during fall, the turf DOES continue to grow – but in ways that differ from spring and summer. Turf grasses form tillers (side shoots) and rhizomes that increase the density of fall turf. This is an important time for turf to “heal” after a stressful summer, especially if it has been worn down by traffic or suffered from disease or insect problems.

Fall watering is essential for late season nitrogen applications to work most effectively. Fertilizer applied to dry turf is less likely to enhance fall rooting and increase energy storage. Be sure to water in fall fertilizer applications, often considered the most important application of the year.

Fall is the best time of year to control perennial broadleaf weeds – dandelion, clover, bindweed, plantain, and thistle, to name a few. Fall herbicide applications are more effective when applied to healthy, green, actively growing weeds. The herbicide is more easily absorbed and moved to weed roots resulting in better control.

Finally, fall watering of lawns that were damaged by winter mites (clover mites, Banks grass mites) is essential for discouraging mite activity this upcoming winter and reducing potential mite problems.”

We invite you to join us in our efforts to raise money to support the Children’s Diabetes Foundation. To double the impact of your contribution, we’ll match your tax-deductible gift up to $500. Every dollar helps, and any size donation is welcome.
Tip of the Month:

September and October are great months to get your landscape ready for winter. Pruning trees with heavy or over-extended limbs can help to reduce the likelihood of winter storm damage.

Recent Reviews
Everyone at Mountain High is kind, courteous and happy to explain what and the why of the service they are performing.
~ Robert in Denver ~
The tech was conscious of bees and our pond, did 
a great job.
~ Jim in Denver ~
You are efficient, care 
about the customer’s 
needs and wants and you do a very nice clean up job.
~ Nancy in Lakewood ~
Both John Martinez 
and Chris Gentala 
were fabulous!
~ Beverly in Arvada ~
John Martinez took extra care to keep the spray off our pet bunnies!
Much appreciated.
~ Sally in Lakewood ~
Vince Manus was very professional and did
a thorough job today, explaining everything he did!
~ Rick in Denver ~
A Wacky Summer for Trees!

Our first taste of a wacky summer to come was the browning of Junipers everywhere. They had been riddled by voles (field/meadow mice) throughout the winter only to die as temperatures warmed in spring and early summer. Early spring moisture and humidity followed by summer heat, storms and hail has left our trees battered and ready for fall. Our office has been flooded with questions about “what is wrong with my tree”? Mountain High discovered Pine wilt nematode (PWN) in Colorado Springs, a native pathogen that is deadly to Scotch and Austrian Pines. Besides the death by PWN, many Scotch and Austrian Pines mysteriously browned out and died. Fire blight, a bacterial disease, emerged with a vengeance in Apple trees. Full blossoms and right timing made conditions ideal for this bacterium to be spread by pollinating insects. Almost every Plum tree was invaded by leaf curl aphids in late spring. Random Ash trees failed to leaf out or leafed out poorly – perhaps a delayed response to the Polar Vortex (sub-zero temperatures) in early November of 2014. White Pine weevil hit the tops of Spruce throughout Colorado Springs, more than in recent years and Cooley Spruce gall aphid, normally not a very prevalent insect, appeared in abundance on many Spruce. Mountain High can help you decide what pruning and insect controls you might need. Call our Colorado Springs Office at 719-444-8800 if you have questions about your trees.