open-centre system

horticulture

Also known as: vase system

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July 1, 2026

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The open-centre system, also known as the vase system, is a horticultural training method used primarily for fruit trees. In this system, the main stem of the plant is cut off, encouraging growth from several branches that originate near the top of the trunk. These branches then spread outwards, creating a vase-like shape. This training method is often used for trees like peaches and figs, which respond well to severe annual pruning. The open-centre design facilitates better light penetration and air circulation within the tree, which can lead to improved fruit quality and easier harvesting. This contrasts with the central-leader system, where a main trunk grows vertically with branches distributed around it.12

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gardening
Training and pruning
In the open-centre or vase system, the main stem is terminated and growth forced through a number of branches originating close to the upper end of the trunk. An intermediate system is called the modified-leader system. In espalier systems plants are trained to grow flat along a wire or…
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In the open-centre or vase system, the main stem is terminated and growth forced through a number of branches originating close to the upper end of the trunk. An intermediate system is called the modified-leader system. In espalier systems plants are trained to grow flat along a wire or…
Read More