After a long winter, the trees in your yard or at your business are going to need a boost. South Dakota can receive up to 30 to 70 inches of snow annually per year! If you are someone who thinks the cold can be a tough time to endure, just imagine how your trees and shrubs feel about it. Our greenery is outdoors all year long with no protection from the sun or snow, so it’s up to us to make sure they get some sort of boost during the spring, which is the start of their growing season.
In most situations, deciduous trees, evergreen trees, and ornamental shrubs that are planted in a landscaped environment are growing in poor soil. The Black Hills area does not have abundant deposits of rich soils and two to six inches of topsoil hauled into a landscaped environment does not provide enough nutrients for vigorous, healthy trees.
Some examples are:
- Trees showing not enough fertility
- Poor color and slow growth
- Freeze damage
- Spindly growth in the crown
- High death loss of young trees
- Increased insect activity (bores, aphids, etc)
- Increase of disease (specifically Needle Blight on Evergreen, Canker on Deciduous Trees, and low fruit production fruit-bearing trees)
The Ins and Outs of Fertilizing
The best time to fertilize is late fall after the leaves have ceased to function and in early spring. We recommend fertilizing every other year the larger mature, healthy trees and shrubs where growth is not desired to improve the color and density of the canopy and build a hardier plant to resist and overcome disease and insects. Unthrifty mature trees and shrubs should be fertilized every year.
Fertilizing trees and shrubs during the mid part of the growing season is recommended only for those plants that are in an unthrifty condition.
To help understand why an urban tree needs fertilizer, let’s compare a tree in your yard to one in the forest. Typically, we give trees planted in a yard much more care than a forest tree. Why? Let’s first examine the planting site and its parent soil.
The urban tree has been planted in disturbed soil and, in fact, may not have any topsoil or organic material at all. Often these soils are wet, with very poor aeration, high in clay content, and very low in coarse materials such as sand or silt. Meanwhile, out in the forest, the soils have not been disturbed. Leaves drop each year to add a continuing supply of organic material. Micro-organisms work to break down leaves and other vegetation into humus and mineral elements. Earthworms mine the soil and aid in soil aeration.
There is no construction equipment or foot traffic to compact the soils. Drainage has not been interrupted with underground construction, compacted soils, or grade changes. Tree roots don’t have to compete with the lawn for water and nutrients. Thus, it is up to us to take what steps may be necessary to provide the best growing conditions possible for our urban trees, including fertilizing.
The Pros of Deep-Root Fertilization
The liquid root fertilization process provides the elements essential for healthy, vigorous plant growth. This also increases a tree’s resistance to insect and disease attacks. But what is deep-root fertilization exactly? It is basically fertilization that is injected directly into the roots of the tree. This will give your trees a more well-rounded, high-quality nutrients to ensure that it has what it needs to continue living a long, healthy life.
What We Recommend
Warne Chemical injects, under pressure, the proper amount of fertilizer into the root zone of the trees and ornamentals. We use only high-quality, low salt, and slow-release fertilizer. One feeding will feed for an entire year.
We use a complete fertilizer plus an iron/sulfur supplement.
- We recommend fertilizing every year to accomplish the following:
- Increased growth of young trees and shrubs
- Increased winter hardiness and longevity
- Improved color and density of canopy
- Builds a hardier plant to resist and overcome disease and insects
- Increases the livability of young plants less than ten years old
Call Warne Chemical & Equipment Compant Inc. Today!
The team at Warne Chemical can help guide you through the ins and outs of fertilization needs for your trees. We have the experience, the equipment, and the knowledge to continuously provide the necessary needs for any kind of tree or shrub you need assistance with!