Denver Tree Care Encyclopedia: The Bosnian Pine
americanarbor May 23, 2022

What does a Bosnian pine tree look like?

The Bosnian pine is a slow-growing tree that reaches heights of 50 to 70 feet when it’s fully mature. The spread of its branches can span 10 to 15 feet in width, making the shape of a Bosnian pine tree tall and narrow. Their pine needles are dark green and grow to a medium length, and the bark is light grey. Bosnian pines also produce cones that are around three inches long.  They tend to hold their needles much longer than many of our other pines planted for our area.

Although there are nearly 100 different types of pine trees in the northern hemisphere alone, the Bosnian pine sets itself apart by growing tall and narrow, and it’s branches aren’t as dense as other species, making it easier to see between them. This makes it a perfect tree for planting in your yard, since it doesn’t overpower other trees and plants.

What does it need?

Bosnian pine trees need lots of sun to grow. In fact, they prefer at least six hours of full sun exposure per day. Plant them on the south side of your home or other structures so they receive plenty of sunlight to grow healthy and strong. Besides careful pruning to shape them when they’re small, Bosnian pine trees don’t need a lot of TLC to thrive. Just plant them in a sunny spot and watch them grow — slowly, but surely.

These trees prefer soil that’s well-drained and sandy, but they can grow in soil that contains some clay, as long as it drains properly. When it comes to soil, Bosnian pine trees prefer acidic to slightly acidic soil with a pH of 4.5 to 6.5. Since Denver soil can be more alkaline, you may need to amend your soil ensure that you’ve got idea conditions for growth. 

Where does it grow?

The Bosnian pine is is native to mountainous areas in eastern Europe that have dry limestone soils. They’re abundant in places like the Balkans, Italy and Greece. In its native habitat, the Bosnian pine tree can grow to heights of up to 90 feet tall, but in places like Denver, they typically max out at around 20-25 feet tall. These trees can grow in places with elevation levels up to 6,500 feet, and in zones three through eight. You’ll find Bosnian pines at the base of Colorado’s mountains and throughout Denver, since its elevation is just under 6,000 feet.

Why the Bosnian pine tree grows well in Denver

Bosnian pine trees don’t need a lot of care, and their growth pattern is slow and steady. This allows these trees to form a sturdy root structure so they can withstand harsh, windy winters. Since they’re so low-maintenance, these hardy trees can grow in a variety of conditions, as long as the climate isn’t too warm. Denver weather is mild and chilly, and the soil is typically sandy loam, with varying amounts of clay. This makes the perfect environment for Bosnian pines to thrive.

Homeowners choose to plant Bosnian pine trees in their yards, since they’re beautiful, slow-growing, and low-maintenance. A Bosnian pine tree is also smaller and its foliage is less dense  than other types of pine trees, so it won’t overtake your yard as it grows.

If you’d like to learn more about Bosnian pine trees or other trees that grow best in Denver, contact us today. Our tree experts are happy to help you pick the best trees to plant in your yard.

Denver Tree Care Encyclopedia: Kentucky Coffee Tree
americanarbor May 23, 2022

It got its name from early Kentucky settlers who thought the tree’s seeds looked like coffee beans, and they used them to build railway sleeper cars. Kentucky coffee trees can be found in backyards and parks throughout the Midwest, and they’re also scattered throughout Colorado. Let’s take a closer look at these trees and what conditions they need to grow healthy and strong.

What does the Kentucky coffee tree look like?

The Kentucky coffee tree can grow up to 75 feet tall and has an oval or round spread of 40 to 50 feet in width. They provide lots of shade for backyard picnics, but they grow slowly, at around 12 to 24 inches each year. Kentucky coffee trees produce green seed pods that are 5 to 10 inches in length that turn brown as the seasons change. They’re one of the last trees to produce leaves in the spring, but they’re well worth the wait. These trees produce lovely greenish-white flowers that bloom right when the leaves are maturing in late spring, and they smell like roses.

What does it need?

Kentucky coffee trees are easy to care for and they can withstand all kinds of environments. They can thrive in soils that are acidic or alkaline, and they don’t mind loamy, sandy, or clay soils. Kentucky coffee trees do prefer well-drained soil that’s moist, but they’re extremely drought-tolerant. More than anything, Kentucky coffee trees love the sun, and they prefer at least six hours of unfiltered sunlight every day.

When planting a Kentucky coffee tree in your yard, make sure it’s in a sunny spot where it will get plenty of sunlight each day. This is usually on the south side of your house or other structures that could obstruct it from the sun.

Where does it grow?

Native to the Midwest, Kentucky coffee trees grow best in hardiness zones 3 through 8. Although Denver is in a Mountain State, these trees grow well throughout the city since it’s in zones 5b and 6a. In fact, this tree can grow throughout Colorado with little problem at all. They’re drought-resistant and can handle just about any soil, and their branches are strong enough to withstand mountain winds with ease.

Why the Kentucky coffee tree grows well in Denver

The Kentucky coffee tree was first named in Kentucky, but it grows well throughout the Midwest and into the Mountain States. This is, in part, thanks to the tree’s impressive ability to grow in a variety of soils, environments and climates. The Kentucky coffee tree grows thick, strong branches that can handle Denver’s winter winds, and it can handle the varied loamy and clay soils that can be found throughout the city. They don’t have many issues with insects or diseases, and they’re extremely tolerant to pollution and droughts.

Additionally, Kentucky coffee trees grow very quickly when they’re young, developing a strong root structure that keeps them tough. As they continue to grow, they slow down and reach their full height over many years. This allows the Kentucky coffee tree to remain firmly rooted in the ground as it grows and matures.

These trees are the perfect choice if you’re looking for shade trees, since their leaves filter light and allow it to pass through gently. They’re also lovely ornamental trees that will add beauty to your landscape. 

If you’d like to learn more about the Kentucky coffee tree, or you’ve got questions about adding some to your yard, contact us. Our tree experts at American Arbor Care would be happy to help you.

What Types of Grass Grow Best in Denver?
americanarbor May 23, 2022

Let’s look at the types of grass that grow best in Denver and what qualities you should look for when purchasing grass for your yard.

What Qualities Should You Look For?

Denver weather can be unpredictable, and your grass will need to be hearty enough to handle it. For your grass to thrive in Denver, it will need to:

  • Withstand a variety of weather conditions
  • Handle excessive heat
  • Survive without a lot of water
  • Tolerate deep snow over extended periods 

You can also choose grass that prefers the sun or shade. Grasses that prefer shade will thrive, especially in north-facing yards, while sun-loving grass types will do best in southern-facing spots.

Types of Grass that Grow Best in Denver

Buffalograss

Buffalograss is a warm-weather grass that can grow in portions of the city that are lower than 6,500 feet in elevation. Each blade grows 10 to 12 inches in length and drapes over, creating a thick, green carpet.  Because it doesn’t tolerate high elevations, buffalograss is a less common choice for homeowners in Denver, and it grows best in an area with low foot traffic. Additionally, this high-maintenance grass will need to be cared for year-round, but it’s hearty enough to resist moderate heat and droughts. Plant buffalograss in alkaline and loamy soil, and make sure it’s well-drained so the grass remains healthy and pest-free.

Fine Fescue

Fine fescue grows in a dense turf and it’s a low-maintenance favorite among Denver homeowners. This grass prefers shady spots, like yards with tall trees or buildings. If you plant fine fescue in a partially shaded yard, blend it with Kentucky bluegrass to get a lovely, even look. Luckily, fine fescue grows without a lot of care, and it can withstand all kinds of soil conditions, including sandy and rocky loams. Since it grows lush and thick, make sure you use a lawn mower with a sharp blade to cut a yard that’s full of fine fescue.

Kentucky Bluegrass

You can’t go wrong with growing Kentucky bluegrass in the Mile High City since it can handle all sorts of weather conditions. This grass is soft and grows quickly, filling in bare spots so your lawn is thick and bluish-green. Kentucky bluegrass loves the sun, but some varieties can tolerate full shade without a problem. The only drawback to Kentucky bluegrass is that it’s prone to forming large amounts of thatch that will need to be maintained. You can amend this by regularly aerating and dethatching your lawn. Kentucky bluegrass tends to be a cool season grass, so it prefers temperatures between 55 and 85. During our peak heat seasons, you can expect to need more water for your yard with Kentucky bluegrass. 

Perennial Ryegrass

Perennial ryegrass is the perfect solution for yards that see a lot of foot traffic. Because of this, it’s a popular choice for golf courses and parks. The blades are narrow and dark green, and they’re incredibly durable year-round. It’s a low-maintenance grass variety that tolerates the cold without a problem. Perennial ryegrass is often included in grass seed blends, and it pairs well with Kentucky bluegrass. Although it can be more susceptible to pests and disease, as long as you keep a close eye on your grass, it should remain healthy and strong. Rye should be aerate at least once per year in the spring or fall. Dethatching is not required as often, but should be completed in the early spring, every 8 – 10 years. 

Tall Fescue

This dense grass has an impressive root structure that grows four feet beneath the soil. It’s hardy and adaptable, making it an excellent choice for low-maintenance yards and places with lots of foot traffic. Tall fescue can handle cold weather, heat, droughts and shade, and it doesn’t need much water. As long as the soil is well-drained, tall fescue doesn’t require a specific soil type in order to thrive. It also grows slowly, and tall fescue won’t invade your garden or flower beds. Colorado State University has pioneered a new variety of fescue called Turf-type tall fescue

When selecting the right grass for your lawn, it’s important to consider Denver’s unique climate and altitude. If you’d like to learn more about what type of grass grows best in Denver, contact us today. Our experts at American Arbor Care will help you to choose the right grass type for your yard’s needs.

8 Questions to Ask When Hiring an Arborist
americanarbor May 23, 2022

1. How Are Their Reviews?

As with any service provider, online reviews will tell the full story. A reputable company with plenty of gold stars beside its name has earned those reviews, and will be more likely to do a stand-up job. Read through the customer reviews to see how satisfied they were with the business’s response time, efficiency, and the quality of their work. 

2. Are They Insured?

It’s very important to hire an arborist that is insured. This protects both you, the homeowner, and the company itself when trees are being pruned or removed. Check to make sure your arborist has liability insurance that will cover any damage that occurs to your property when they’re working. Your arborist should also carry worker’s compensation insurance that will take care of any employees who are injured on the job. This insurance will also protect you from being sued. We also encourage homeowners to ensure they are aware of any liability waivers and their rights/as well as neighbor’s rights when it comes to plant material crossing/encroaching a property line.

3. Are They Licensed?

In order to obtain a Tree Service License in Denver, an arborist must pass a written test and a field test that prove that he or she can perform quality arbor care that is safe and efficient. Before hiring an arborist, make sure the company has the appropriate license for tree removal in your city. It’s completely acceptable to ask for a copy of their license.

4. Do They Have the Proper Credentials?

There are several different opportunities for training and certification available for arborists to pursue, so it’s a good idea to ask about them. Some of these include:

  • International Society of Arboriculture Certified Arborist
  • Board Certified Master Arborist
  • Qualified Supervisor License with the Colorado Department of Agriculture

Most impressively, the International Society of Arboriculture (ISA) provides membership to arborists who can pass extensive testing that covers all kinds of information on tree care and maintenance. If your arborist is a member of the ISA, you can rest assured that they’re experienced and educated on all things tree-related.

5. Can They Provide Referrals?

When shopping around for an arborist, ask them if they can provide a list of referrals? A company with a good reputation should be able to readily give you the contact information for a few happy customers. These references can give you more information about what kind of work to expect from the arborist along with their satisfaction level.

6. Can They Give You a Free Estimate? 

A qualified arborist will be happy to provide free estimates for the services you’d like them to complete. In fact, they should be able to deliver a detailed estimate in writing, so you can be crystal clear about what to expect. This will ensure that you don’t have surprises that pop up as they complete their work. Keep in mind that estimates are different from consultations or landscape plans, which can have fees associated. Be sure to clarify with your arborist what is included in the free estimate. 

7. Do They Have the Right Equipment? 

Ask the arborist about the equipment they have to perform the job. It’s important to know if they have heavy equipment like cranes to perform big jobs on large trees. A variety of available equipment will make it less likely that the company will cause damage to your property while they’re getting the job done. 

8. What Type of Training Have Employees Participated in? 

Denver only requires that one arborist at a tree service company has a Tree Service License. Because of this, it’s important to ask about the employees, and whether they’ve been properly trained to do quality work. Ask about their experience level and any certifications that the employees have obtained along with whether the company has a drug-free policy.

If you’d like more information about quality arbor care, contact us today. Our arborists at American Arbor Care are certified and passionate about tree care and we’ll get the job done safely, efficiently and to the highest standards.

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