In spring, all the shoots can be cut at the base when they reach an average height of 60cm. This practice applies only to plants from the second year with good vigor . After a few days the plant produces new vigorous vegetation, all the same, less susceptible to seasonal fungal diseases. Once the second vegetation will again have a decent height, an average of 3-5 vigorous shoots will be chosen for each stake, plus a couple of reserves if it is necessary to replace someone damaged in the following days.