Interesting facts about the roots

Walnut tree is taproot

The walnut is deep-rooted with taproot. This means:

• The root of the walnut tree penetrates deep into the earth.
• She does this like a stake.

Here is a general definition of the taproot: It is a root that develops from the germinal to the main root and grows vertically into the ground. Side roots of the first order arise from the tap root. These go obliquely or horizontally from the tap root.

The taproot is therefore part of a heterogeneous root system. In technical jargon one speaks of allorhizia.

Note: The taproot in the walnut tree is extremely well developed. It clearly exceeds the lateral roots in terms of length and diameter.

Excursus: characteristics of shallow roots

To understand the difference between deep and shallow roots, here is a brief explanation of the latter:

A shallow root is always a plant (such as a tree ...) with roots that do not dig very deep into the earth. The exact opposite is true. The roots spread like a plate in the upper soil layers.

Examples of shallow roots:

• many species of spruce
• Banks pine
• Douglas fir
• Hornbeam
• Pastures

Interesting: If the ground conditions are bad, shallow-rooters do not find optimal support, which in turn endangers them in the event of a strong storm. But: If the soil fits and / or if there are suitable rocks nearby, shallow roots often develop good root systems and grow on whole boulders. Then they are stable in most cases.

Walnut tree as a heart root

In some cases, the walnut tree is also considered to be a heart root. This is a kind of intermediate form.

The root of a heart root is characterized by a compact growth and few but strong side roots as well as a hemispherical growth form.

Practical tips

What does the walnut tree root type mean in practice?

The roots of a walnut tree take on similar expansive dimensions as the crown. For this reason it is with Planting It is essential to leave sufficient distance to buildings (including basements).

Note: Some hobby gardeners have already had the experience that the roots of their walnut have "drilled" their way completely through the outer cellar wall. You should absolutely avoid such masonry blasts. So plan at least twelve to 15 meters away from houses when planting your walnut.

If your walnut tree is in a strategically unfavorable place, you absolutely have to try the plant dig up and to transplant.