Sabina Lazio, from the traditional Olive tree to the free Bush vase system

We are in Sabina, in the province of Rieti, a territory that represents a symbol of Italian olive cultivation. Here, the classic policonic vase system prevails, a system developed in a different era, when labor availability was high and management costs were entirely different from those of today.

Today, however, the context has changed. The way we conceive the tree must also change.

In this olive grove, originally established with a traditional spacing of 6 x 6 meters, a transition has been initiated toward a more modern and efficient 6 x 3 meter layout. This is not simply about increasing the number of trees, but about building a system that is more balanced, sustainable, and easier to manage.

The objective is to create a small, free growing, and productive olive tree, capable of self regulation. This system, referred to as the free bush vase or Zaragoza free vase, allows the tree to develop without being constrained within rigid schemes, instead guiding it toward a natural, well lit structure rich in productive branching.

The initial stages are straightforward: establishing the framework at approximately 80 to 100 centimeters, providing support, and carrying out some heading cuts according to the classic Zaragoza model. Two or three topping and edging interventions make it possible to stimulate multiple branching and progressively build the productive bush structure.

After just three years, the differences compared to the traditional policonic vase system are evident. The trees appear compact, balanced, well lit in their inner canopy, and naturally inclined toward fruit production.

In the traditional system, there is often an excess of structural woody mass, with large primary branches, few fruit bearing shoots, and a continuous production of vigorous suckers that must be managed each year.

This reflects the classic pattern of constant addition and removal, where the tree produces vegetation that must then be removed by human intervention, resulting in unsustainable costs.

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In the free bush vase system, only what is unnecessary is removed, mainly through return cuts. Since the tree is not continuously destabilized, it uses its energy to produce fruit bearing branches and fruiting rather than unnecessary vegetative growth.

The structural framework remains short, light, and efficient. The branches naturally bend, branch out, and produce. There are no longer a few rigid dominant limbs, but numerous productive branches distributed harmoniously.

This makes it possible to maintain the tree within contained dimensions, around three meters in height, fully compatible with a modern 6 x 3 meter spacing and with a much more sustainable management approach.

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Today, we can no longer afford systems that require routine work at heights of 4 to 5 meters or that generate excessive amounts of material to be removed during pruning.

If a tree continues to produce vigorous suckers, the problem is not the sucker. The problem is almost always an imbalance in the training system.

Modern olive cultivation must move toward simpler, brighter, more productive, and above all more manageable trees.

Small, free, bush like. Built to produce, not to be constantly corrected.

Editorial note:
Original content by Agronomist Vito Vitelli, developed and optimized with the support of artificial intelligence tools for educational, informational, and technical dissemination purposes.

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