Walnut Tree, Close to Home

In the hills, people learn from nature by watching it closely. One common practice is that villagers do not plant walnut trees near their homes. Is this a superstition or age-old wisdom?

Walnut trees grow big and spread wide. Their shade is very dense. Under them, very little grows. Many vegetables, and small plants often struggle to survive nearby. Over time, people noticed that planting a walnut tree close to the house affects their kitchen gardens and other useful plants. There is also another reason for this. Walnut trees release a substance called juglone into the soil. It slows down the growth of many other plants. The scientific term for this is Allelopathy. The same mechanism that kills a lot of tiny plants around bottle-brush too.

Juglone also acts as a mild natural pesticide. Because of this, planting a walnut tree in the courtyard that is often used, is not ideal. During summer months, this may be harmful for anyone spending a lot of time under the tree for long hours. I am not sure about if any studies have been done on this but the effect is there. However, I have still gone ahead and planted a tree close to the entrance to my house. The juglone if it does have pesticidal effects, will help keep flies, mosquitoes, and other pesky insects in control. I have planted one near the compost pits too for the same reason.

Walnut trees also have a deep tap root. This helps them stay well grounded. Many villagers feel that such trees are more likely to be struck by lightning, or at least seem more exposed during storms. This belief adds to the caution of keeping them away from homes. This is interesting. If it does happen then I feel it is actually protecting the house from a lightening strike. The deep tap root also holds the soil well and so providing extra safety in hills already prone to landslides, I feel. The roots however can affect old houses. Traditional homes made of stone and mud can develop cracks if large roots grow close by. This is usually not a problem in RCC or iron frame houses, but older structures are more vulnerable.

The dense canopy and large size is another concern. It can spread over the house. It can then act like a bridge for vermins and even monkeys to reach the roof, which creates another practical concern for most. With my walnut tree near the house, I keep the size in control by annual lopping and pruning. The walnut trees are large and heavy. In strong winds or storms, branches can fall. Keeping such a tree too close to the house can be risky, especially if they are allowed to grow unattended.

Another important reason why people avoid it may be the sunlight. Homes in the hills need warmth. A walnut tree can block sunlight and make the house feel cold and damp. Even though the leaves fall off in winters but during early spring, when the breeze is still cold, a walnut on the south side of the house can stop a lot of warm sunlight.

The village wisdom is right to a large extent. They do not avoid the walnut tree. They plant it away from homes and give it space to grow and flourish. It is often planted at the edge of fields. This way, they can enjoy its benefits without disturbing their living space.

Time will tell how the balance works out with the walnut tree in front of my house. Living with nature is often about observing, adjusting, and learning along the way. This is how traditional knowledge continues to evolve. It remains rooted in experience, yet open to thoughtful change.

Click here for all related posts – Browse my blog on slow and sustainable living !