Newick Wine Estate

Winter pruning, alongside its associated vineyard tasks, is the second-largest operation in our annual vineyard cycle at Newick Wine Estate, both in time and resources. It has a direct influence on yield, fruit quality, and the long-term health of the vines. Poor pruning decisions made in winter do not correct themselves and they carry financial and structural consequences for years.

In the UK’s cool climate, the purpose of grapevine pruning is not simply to reduce growth, but to organise the vine effectively on its trellis. A well-structured vine captures light efficiently through an evenly spaced canopy of around 1 to 1.5 leaf layers, balanced against the crop it must ripen. Excessive vegetative growth leads to shading and restricted airflow, increasing disease pressure. Excessive crop load pushes the vine into resource deficit, weakening growth in both the current and following seasons.

When We Prune

Our pruning decisions are governed by three factors: weather conditions, frost risk, and available labour.

We avoid pruning during wet weather wherever possible. Damp conditions significantly increase the risk of spreading grapevine trunk diseases such as Esca, Eutypa, Phomopsis, and Botryosphaeria. Once infected, vines decline progressively until they are no longer economically viable.

Timing also plays a role in frost protection. Delaying winter pruning can postpone budburst by up to two weeks, reducing exposure to spring frosts. For this reason, we aim to prune as late as practical, particularly in frost-prone areas, ideally close to early April.

Labour availability is the final constraint. At Newick Wine Estate, pruning a single vine takes approximately 20 to 40 seconds. Across 37,000 vines, this equates to roughly 300 hours of pruning, with a further 500 hours required for associated winter tasks. For a small team, this requires careful prioritisation.

In practice, we prune during dry weather windows, switch to alternative winter work during wet periods, and sequence pruning from lower-risk areas to frost-prone sections of the vineyard, which are left until March where possible.

Pruning Systems in Use

Two pruning systems dominate UK vineyards: Guyot (cane-replacement) pruning and cordon pruning.

Guyot pruning creates a central head of old wood from which a replacement cane and renewal spur are selected each year. The cane carries the majority of the crop, while the spur provides material for the following season. This system offers flexibility and is particularly well suited to young vines.

Cordon pruning establishes a permanent horizontal arm with evenly spaced spurs, each carrying one or two buds. As vines mature, this system allows greater consistency in canopy management and fruiting zone control.

Due to vine age and structure, all vines at Newick Wine Estate will be pruned using the Guyot system in 2026. This allows us to balance vigour, yield, and vine structure during the establishment phase. As the vines mature, selected blocks will transition to cordon pruning, reducing labour requirements and improving consistency.

Our Pruning Principles

When pruning, we follow a consistent set of principles:

• Replacement canes are selected from the previous season’s growth
• Renewal spurs are positioned below the cane and aligned with the row where possible
• On young wood (under two years), a basal bud is retained to aid healing
• Cuts on older wood are avoided where possible; if necessary, cuts are left proud to allow for controlled dieback
• Cuts greater than 25 mm in diameter are avoided
• All cuts are clean, decisive, and positioned midway between buds
• Follow-up spring work is essential, removing unwanted growth from the vine head during early canopy management