<strong>Denver Tree Care Encyclopedia: The Colorado Blue Spruce</strong>
americanarbor November 18, 2022

The Colorado Blue Spruce can be found in home landscapes across the state, and its majestic blue-green hue makes it stand out among other, less showy trees. Known for its exceptional beauty, this common landscaping tree is worth learning about and caring for — especially since it’s Colorado’s official state tree. Let’s learn about the Colorado Blue Spruce and what it needs to grow healthy and strong.

What Does a Colorado Blue Spruce Look Like?

The Colorado Blue Spruce is a unique shade of silvery blue-green, and its color remains throughout the year. Its needles grow  to about an inch in length, and they’re quite stiff and prickly. The tree also produces light brown cones that are between three and four inches in length, hanging downward near the top. Typically, the Colorado Blue Spruce grows in the shape of a pyramid, with a pointed top and wide, thick base. 

Where Does it Grow?

The Colorado Blue Spruce is very hearty, and it can easily adapt to many different soil types and weather conditions. Additionally, the tree has an extensive root system that allows it to withstand high winds and harsh weather. The state of Colorado is in growing zones four through six, making it easy for the Blue Spruce to grow anywhere in the state, including in the mountains. In fact, the tree was first discovered in the Rocky Mountains over a century ago.

How Big Does it Get?

Growing at a slow to medium rate, the Colorado Blue Spruce reaches heights of 50 to 75 feet, with a spread of up to 20 feet in width. In the wild, this lovely tree can grow up to 135 feet tall, with a spread of 35 feet in width. If you have a young Colorado Blue Spruce in your home landscape, you can expect it to grow at a rate of up to 6-12″ per year.

What Does it Need to Grow?

The Colorado Blue Spruce is incredibly hearty, and it’s learned to adapt to all kinds of conditions. Let’s discuss its soil and sun needs.

What type of Soil Does it Need?

This hearty tree can thrive in all kinds of soil, including acidic, well-drained, clay, loamy, or moist conditions, and it can tolerate moderate flooding and droughts. Overall, it grows best in soil that receives normal moisture throughout the year.

How Much Light Does it Need?

The Colorado Blue Spruce thrives in full sun, with at least six hours of unfiltered sunlight. If you choose to plant one near your home, make sure it gets plenty of direct sunlight every day in order to grow properly.

Are Colorado Blue Spruce Trees Native to Colorado?

Not only is the Colorado Blue Spruce native to Colorado, but it was first discovered in the Rocky Mountains nearby. This tree is native to North America, and it can be found growing naturally in states like Colorado, New Mexico, Utah, Wyoming, Arizona, and Idaho.

Interesting Facts:

  • Many animals find shelter in the Colorado Blue Spruce, including Pine siskins, crossbills, and nuthatches.
  • The Colorado Blue Spruce was discovered in 1862 in the Rocky Mountains.
  • The tips are edible, tart, and full of vitamin C.
  • It’s the most popular choice as a landscape tree in the United States.
  • They’re also the most popular tree to be chosen at Christmastime.
  • The Blue Spruce is Colorado’s official state tree.
  • These magnificent trees may live 600 to 800 years!

If you’d like to learn more about the Colorado Blue Spruce and how to properly care for them, we’re here to help. Contact us today at American Arbor Care.

How to Care For Your Tree After a Snow Storm
americanarbor November 10, 2022

Here in Denver, snow and ice are are winter staples, and most trees have learned to adapt to these harsh conditions. Even so, trees can be severely damaged by the weight of compacted snow and thick layers of ice, leading to dangerous conditions for the tree’s health — and your own. Let’s look at some things you can do in order to save your damaged tree after a snow storm.

What are the Signs of Snow and Ice Damage?

Some common signs that your tree has undergone damage from snow or ice include:

  • Bowed branches, reaching toward the ground
  • Snapped branches on the ground
  • Broken branches hanging in the tree
  • Torn pieces of bark or shattered branches
  • The tree is leaning abnormally

Assess the Damage to Your Tree

Before assessing your tree, make sure the conditions are safe enough for you to approach the area. From a distance, observe your tree and look for signs of bowing branches or a leaning tree. Look for downed power lines or broken branches that are leaning on power lines above. If you can safely approach the tree, and it’s small enough, you may be able to save it yourself. If, on the other hand, your tree is very tall, or if there are large, broken branches on the ground, it’s best to call a professional. Branches are heavy, and an arborist will have the equipment and knowledge to safely care for your injured tree.

Carefully Remove Snow From the Tree

If your tree is small, and if you feel comfortable approaching it safely, you can begin to remove snow from its branches. Use a broom or other object to carefully sweep snow off the tree, effectively removing excess weight from its branches. If the snow is compacted or has begun to melt, you can use a shovel to knock the snow off.  Use upward sweeping motions and take care not to break or injure branches in the process.

Remove Broken Branches 

Broken limbs that are small need to be pruned at the point where they join larger branches. This will lessen the chances that your tree can become sick from bacteria entering its wounds. To prune small branches, it’s important to make cuts in the correct places. You’ll need to make a partial cut on the bottom of the branch, several inches from where it meets the trunk. Then, make another cut on top of the branch, but several inches away. That way, when it falls, the branch will fall easily. Finally, make a cut near the branch collar, where it joins the trunk. 

Large branches that are broken will need to be pruned as well. In most cases, it’s best to call in the pros. They’ve got the tools and expertise to safely prune your tree, while ensuring that it will heal properly where cuts have been made.

Bracing and Staking Your Tree

If your tree is young and leaning significantly, it may be necessary to provide support so it will continue to grow vertically. To do this, use a mallet to drive two or three stakes into the ground around the outer perimeter of the tree’s root ball. Then, push the tree upright by carefully adding even pressure to its trunk. Use special straps to attach the stakes to the tree, and make sure the tree has enough slack to sway, but is thoroughly supported. 

A young, leaning tree may require bracing and staking for up to a year in order to ensure that it grows correctly.

Spring Fertilization 

As always, a healthy tree is most likely to weather storms with ease while avoiding disease and infestation. You can encourage your tree to stay healthy and strong by fertilizing it each spring.

If you’ve got questions about how to care for your trees after a snow storm, or if you’d like tips on how to keep it healthy, we’d be happy to help. Contact us at American Arbor Care today.

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