3 Bordeaux Appellations Permitted to Irrigate Vines

In a year of drought, heatwaves and fires, producers in the three Bordeaux appellations of Pessac-Léognan, Pomerol and Saint-Émilion have been given special dispensation to water their vines. 

The lack of rain this year has been so pronounced that Météo France, the French national weather service, declared that July of 2022 was the driest on record since 1959. Irrigation is usually banned in the region from the 1st of May onwards. However, producers sent a request to the regulatory body, the Institut National de l’Origine et de la Qualité (INAO), which issued a derogation in light of the ‘extreme situation’ facing Bordeaux châteaux. Winegrowers are permitted to water their vines during times of persistent drought with permission and only if the drought ‘disrupts the good physiological development of the vine and ripening of the grapes.’ The vignerons were told by the INAO that their request was granted in this case but to use it when ‘only absolutely necessary’.

In Pomerol, the derogation states that producers must submit their proposals for irrigation two days ahead of any activity, along with the size of the vineyard area and grape varieties to be watered. Grapegrowers must also only use water from wells near the vineyard sites and not from the network.

The threat drought poses to vines, especially young vines, is hydric stress. This means that vines can’t get enough water to flourish and are unable to build up sufficient levels of sugars which delays ripening and harvest. Older vines have deeper roots which can draw water from further underground but vines aged between three to eight years old need the most attention.

The permission to irrigate vines is a much needed lifeline for wine producers this year who have had to deal with April frosts, the June hail storms, fires and a heatwave. With forest fires having started up again around Bordeaux, the region’s châteaux will be praying that the next few weeks bring cooler temperatures and long overdue rain.