The Importance of Pruning and Vineyard Replacement
By Mark Clarin of McGrail Vineyards
The Importance of Pruning
It’s that time of year again in the vineyard, when we prune last year’s growth back to the cordon. Our vineyards are currently pruned to two bud spur positions. These positions are kept approximately a fist apart along the cordon in order to keep the new shoot growth separated for later when the fruit sets.
The reason we prune back is to control consistency in production and to make sure we can still walk down the rows and properly manage the vineyard. There are many tasks throughout the growing season that require hand manipulation. Since grapevines are vines, they seem to have a mind of their own and want to grow in wild directions. Our trellis allows us to control the vines so that we can manage yields and quality.
Our estate vineyard was originally planted in 1999 and is now at the end of its ideal productive life. We have sixteen and a half acres planted to Cabernet Sauvignon and it has, and still continues, to serve us well. At some point, the need to replant is fast-approaching, so we are taking out a section of approximately three acres this year to be replanted again in 2022. Since we have our new Lucky 8 vineyard coming into full production, it affords us the opportunity to re-develop our estate vineyard.
It takes about three years for new plantings to come into full production. It’s about a five-year process when you have to remove a vineyard, because you want to leave the ground fallow for a year. If we have to remove all 16.7 acres at once, we would lose production for five years. By doing it in small quantities, we will still be able to produce our cherished Patriot, James Vincent, A Jó Élet “the Good Life,” and Reserve Cabernet Sauvignon through the re-development phase. It will take up to ten years for us to replant the whole vineyard and up to 20 years to get back into full production. Grape growing is definitely not for the faint of heart.