Pruning early, pruning late, nothing beats pruning in March!
This old adage, whose origin no one knows, has never been so true. With the repetition of several frost episodes since 2016, the Burgundy vineyard is questioning its practices: when should it be pruned to avoid the consequences of frost on an early start of the vine?
Pruning is a major challenge in the face of climate change, also a guarantee of the sustainability of the vineyard for the long term. At Domaine Leflaive, where the cultural philosophy favors experience over systematism, sobriety over the debauchery of means, the teams seek to improve every detail. “We are feeling our way through pruning,” says Pierre Vincent, General Manager. We conducted trials last winter in our plot of Puligny-Montrachet 1er cru Clavoillon, with deferred pruning in December, February and March. An episode of moderate frost, which occurred on April 8th, did not allow definitive conclusions to be drawn on the most adequate choice. “The best way seems to us to prune in two stages: the first between December and February which will ensure the sustainability of the vine, the second at the end of March which has the effect of delaying budburst. A single late pruning presents a risk of crop loss.”
In its quest for excellence, the Domaine has also sought the advice of Simonit and Sirch, Italian technicians adept at precision pedagogy. Their expertise is recognized in vineyards around the world.
“If the pruning of the vine is an ancestral practice, it needs those details of improvement that make a qualitative difference. They are one step ahead,” underscores Vincent. They accompany us from December until the green pruning in July, ensure the continuous training of our pruners because carrying out the Guyot pruning in an optimal way is not so simple.”
For example, the techniques of Simonit and Sirch make it possible to bend the vine sticks in the same direction without fear of breaking them. The interest? Avoid heaps of vegetation, and therefore potential diseases, and large pruning wounds that are traumatic for the wood. “In the end,” Vincent concludes, “we prolong the longevity of the vines. And an old vine gives better wines…”