Trees are massive, and they require a lot of nutrients to stay healthy as they grow. Denver soil poses a few challenges that, with a little effort, we can amend, so our trees get the nutrients they need to thrive. At American Arbor Care, we know how to fix local clay-heavy soil and soil that’s low in organic matter. Let’s look at how you can amend your soil to improve the health of your trees.
Understanding Your Soil
Different plants require different types of soil to survive, and it’s important to know what type of soil you have in your yard. There are different types of soil, including:
- Clay: This soil is heavy, dense, and high in nutrients. This soil retains moisture and makes it hard for roots to grow.
- Sandy: Sandy soil is dry, low in nutrients, and typically acidic. Roots grow easily, but moisture passes through too quickly.
- Silt: Silt soil is light and easily compacted. It’s rich in nutrients and optimal for plant growth
- Loam: Loam is a mixture of the three soils above.
Testing your soil can help you determine what you need to add for your tree’s roots to grow properly, for moisture retention, and for the right amount of nutrients to be present.
Improving Soil Health
Once you know what type of soil you have, how can you improve it? Let’s look at three of the main ways to amend your soil.
1. Add Organic Matter
Organic matter like compost, composted manure, and other organic amendments can instantly add nutrients to your soil that your plants desperately need. To determine what type of nutrients they need, ask your local arborist for advice.
If you are just planting a tree, mix some organic matter into the soil around the hole where it will be planted. If your tree is already established, simply add a layer of compost around the base of your tree. Allow it to soak into the soil over time when it rains or the tree is watered.
2. Mulch
Mulch adds a protective layer around the base of your tree, so the roots remain at a comfortable temperature. Mulch also helps with water retention, which is especially helpful in areas with sandy soil. Place a layer of mulch, no more than 4 inches, directly on top of the soilcompost around your tree’s base to help it break down and feed the roots below. Make sure you choose the right type of mulch and apply the right amount to keep your tree healthy. Your local arborist can help you determine how much and what type you need for your particular soil and trees.
3. Aeration
Aeration isn’t always necessary, but it’s an excellent choice for compacted soil. A core aerator removes small plugs of soil so that water and air can get to the roots below. This loosens the soil and helps plants to grow and thrive. The best time to aerate is in early spring.
Additional Tips for Denver
Here are a few additional tips for Denver landscapes:
- If your soil is particularly sandy or contains a lot of clay, adjust your watering strategies accordingly.
- Select tree species that are native or well-suited for Denver’s soil conditions.
- Use regular maintenance practices like mulching, adding organic matter, and aerating when necessary, to keep your soil healthy.
Got Questions About Your Soil? Contact American Arbor Care!
Denver trees require healthy soil to remain healthy and strong. A weakened tree is susceptible to diseases, fungi, and falling during a storm. If you’re not sure what type of soil you have or how to amend yours, contact the pros at American Arbor Care. Our arborists have extensive training in soil health and tree needs in Denver, and we’re committed to serving our neighbors, one tree at a time.