Bonsai leaf pruning on a cornelian cherry: defoliating to reduce the leaf size

If a leaf does not get enough light, it dies and the tree forms too small buds in the “leaf axil”. These small buds only sprout weakly the next year and slowly die off. If you lose many branches, the branching will not grow densely enough. This weakens the tree.

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Bonsai design

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LeavesLeaf pruningShaping

 

 

Instructions

Why do you prune leaves? 1. for denser branching.
2. so that the leaves can receive light evenly.
3. to prevent the inner branches from dying off. Complete leaf pruning on a cornelian cherry. You cut off the leaves and leave only 3-5 mm of the leaf stalk. You can leave the leaves on the inner small branches, but not too many (make sure they are airy). You usually use this method in the growth phase, when the shoots grow too much and become thick until the fall. The thick branches can no longer be bent. In extreme cases, a strong alder in the tray can develop 1-1.5 m long shoots with a diameter of 2-3 cm per season. You can no longer bend these branches, so you have to make 2-3 leaf cuts per season and reshape the tree. With some varieties, even the older trees still grow so strongly that a complete leaf cut is necessary at the beginning of June. For example: elm, maple, oak, ash, ... Important: After the complete leaf pruning, 1-1.5 months later, when the second budding has started and the leaves are large enough again, you must carry out a new thinning out so that the tree gets enough light.

Figure 1
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Cornelian cherry (Cornus mas) before the leaf cut.

Figure 2
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Figure 3
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For a parallel budded variety, cut off the branch after the first pair of leaves.

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Figure 5
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Figure 6
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Figure 7
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Figure 8
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Example of a complete leaf cut. On older trees, leave the inner branches and small leaves to make the tree stronger.

Figure 9
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Here you can see a black alder (Alnus glutinosa) with full foliage.

Figure 10
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A strong leaf cut in the growth phase of a black alder (Alnus glutinosa).

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