Instead of Throwing Away Dry Leaves, Kerala Farmer Uses Them to Grow Potatoes in a 5-Foot Tower

What is a vertical growing tower, and how does this design let plants grow in layers instead of across a field?

A vertical growing tower is a tall mesh structure filled with layers of growing material. It lets plants use upward space instead of needing a wide field. This matters for people growing vegetables on terraces, in backyards, or in other limited areas.

Varghese builds a five-foot cylinder from metal mesh and adds dry hay, packed dry leaves, cow dung, an organic mix, and potato sprouts. He places sprouts in circular layers at different heights. As the tower rises, each new layer can support more planting material.

The tower creates several growing levels in one small footprint. Varghese says one tower can hold 20 potato sprouts, and he also grew potatoes below tomatoes or chillies above. His method shows how fallen leaves and organic materials can help turn a restricted growing space into a productive vegetable garden.

How does Varghese build and fill the five-foot tower, and what roles do the mesh, dry leaves, manure, soil mix, and potato sprouts play?

Varghese begins with metal mesh having two-inch gaps. He cuts it to 1.5 metres wide, bends it into a cylinder, and secures the ends with zip ties. A five-foot PVC pipe with holes every 3.5 inches stands in the centre. Four or five inches of dry hay form the base.

He packs about 50 centimetres of dry leaves above the hay. Wet cow dung follows. Then he spreads a dry mixture of goat dung, dry cow dung, neem cake, and organic soil mix. Potato sprouts are placed evenly in a circle and covered with more mixture. The layers repeat upward.

The mesh creates the tower’s frame and holds the materials. Hay stops them falling through, while packed leaves add bulk. Manures, neem cake, and soil mix provide the growing material. The sprouts become the plants, and the pipe helps water reach different layers.

How much produce did Varghese harvest from his 10 towers, and how many potato sprouts can one tower hold?

Varghese harvested 120 potatoes from 10 towers. He did not calculate the total weight of all the vegetables, but the harvest produced more than his family could eat. The remaining produce was shared with neighbours.

One tower can accommodate 20 potato sprouts, according to Varghese. The sprouts are placed evenly in circular layers rather than all at the bottom. As the tower is built upward, more planting positions become available within the same narrow structure.

These figures show the tower’s practical scale, but they are not a complete productivity comparison with ordinary beds. The article records the number of potatoes harvested, not their weight or the total amount of every vegetable. Varghese also grew carrots, tomatoes, capsicum, and other vegetables in the 10 towers.

Why is a watering pipe placed in the centre of the tower, and what could happen if the layers become waterlogged?

The watering pipe is placed upright in the centre so water can reach the different layers of the tower. Its holes are spaced at 3.5-inch intervals. This is useful because water poured at the top might otherwise flow downward, leaving some upper or inner layers less evenly supplied.

For home gardeners, the pipe makes watering the packed structure easier. Varghese watered the sprouts regularly after planting and later added organic fertilisers such as jeevamrutha and neem cake. Leaves began growing outside the mesh within a month.

The tower should not remain waterlogged. The article does not describe a specific failure caused by excess water, but it clearly advises avoiding that condition. In practice, gardeners should therefore water regularly without saturating the layers. The pipe supports distribution, not unlimited watering.

Why can dry leaves, cow dung, goat dung, and neem cake support plant growth instead of being treated as waste?

The tower uses materials that are often treated as waste or discarded. Dry leaves form much of the tower’s bulk, while hay creates a base that stops later material falling through the mesh. This gives fallen plant material a useful role in a small growing system.

Wet cow dung is layered with a dry mixture of goat dung, dry cow dung, neem cake, and organic soil mix. Potato sprouts are tucked into these layers. The article also says Varghese added organic fertilisers such as jeevamrutha and neem cake as plants grew, replenishing the growing mix.

Together, these materials form the structure around the roots and supply organic growing material. The article does not measure the nutrients supplied by each ingredient. It shows, however, that the combined layers supported potatoes, carrots, tomatoes, capsicum, and other vegetables in the towers.

How is growing vegetables in a vertical tower different from growing them in ordinary soil beds, especially when space is limited?

Ordinary soil beds usually use a broad patch of ground, so plants spread across the surface. Varghese’s tower uses height instead. A mesh cylinder holds several layers of leaves, manure, organic mix, and sprouts, allowing many planting positions in one small footprint.

The difference is clear in his potato method. Sprouts are placed in circular layers at different heights, and one tower can hold 20 sprouts. He also planted potatoes at the bottom and tomatoes or chillies at the top. Ten towers contained potatoes, carrots, tomatoes, capsicum, and other vegetables.

This design suits people without a large patch of soil. A terrace, backyard, or other limited growing area can become useful. It does require construction, repeated filling, and regular watering. The central pipe helps reach the layers, while gardeners must avoid leaving the tower waterlogged.

What do plants need from soil or a growing medium—such as water, air, nutrients, and physical support—to produce vegetables?

To produce vegetables, plants need more than a seed or sprout. Their growing medium must physically support them and make water, air, and nutrients available around the roots. It also needs enough structure to stay in place as plants grow. These are general requirements of plant growth; the article shows them through Varghese’s layered design.

His tower uses hay as a base, packed dry leaves for bulk, cow dung and goat dung as organic materials, and neem cake with organic soil mix. Potato sprouts sit between these layers. The central pipe helps deliver water through the tower, while regular watering supports growth.

The results were visible within a month, when leaves began growing outside the mesh. Varghese later added organic fertilisers to replenish the mix. The article does not test each material separately, but it records vegetables growing successfully in the combined medium and a harvest of 120 potatoes from 10 towers.

Key Facts:

📌 A five-foot mesh tower supports plants at different heights.

📌 Layers let vegetables grow upward instead of across a field.

📌 One tower can accommodate 20 potato sprouts.

📌 The tower uses two-inch-gap metal mesh.

📌 A five-foot pipe with holes distributes water through layers.

📌 Repeated layers contain leaves, manure, organic mix, and sprouts.

📌 Varghese harvested 120 potatoes from 10 towers.