The clean cut
(Re-)cutting stems is essential for the flowers‘ vase life performance. (Re-)cutting opens the stem end for water uptake, which is essential for the flower to develop naturally.
The cleaner the cut, the better. Rough stem treatments will lead to the release of organic matter and cell contents into the vase solution, stimulating micro-organisms to develop rapidly, resulting in premature wilting of flowers.
What is the best (re-)cutting practice?
For pure mechanical reasons (re-)cutting at an angle of approximately 45 degrees results in little damage to the stems. This practice ensures perfect and open stem ends. The optimal way of cutting is shown in the pictures.
How many centimetres should be removed?
Research has shown that, if more than 50% of the vessels havebeen blocked, the flower will start to go limp due to the insufficientwater uptake. When (re-)cutting at least 5 cm off thestem end, most of the blocked vessels will be removed. Thisensures optimal water uptake.
How long should the cut be?
A simple short cut is enough to open all the vessels. It is a myththat the longer the cut, the more vessels will be opened as thiswill only bring the water and eventual pollution higher up in thestem. A long cut means more damage to the stem, a bigger surfacefor bacteria to settle and grow and thus more risk ofblocked vessels.
Which cutting practice is detrimental to the flower?
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A straight/flat 90 degrees cut requires more force than an angle cut, resulting in more stem damage and micro-organisms‘ growth. Plus a flat cut sits at the bottom on the vase and blocks the water uptake.
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Splitting/cross cut of stems. This also results in a negative vase life performance.
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