How to Prune a Cherry Tree for Optimal Fruit Yield and Health

How to Prune a Cherry Tree?

To prune a cherry tree, begin by disinfecting your pruning tools to reduce the risk of infection.

The timing of pruning depends on personal preference, with some opting for winter pruning to encourage growth and others choosing late summer pruning to avoid disease development.

For young cherry trees, cut back the central leader in the first year and choose four well-spaced lateral branches to prune in the second year.

Established sweet cherry trees require light pruning to remove weak or damaged branches and to encourage fruit bud development.

Established sour or acid cherry trees require heavier pruning to remove a quarter of older wood.

Weeping cherry trees should have suckers removed at any time and dead branches pruned in winter.

The overarching goal is to create an open structure that maximizes sunlight exposure and air circulation, promoting healthy growth and fruit production.

Key Points:

  • Disinfect pruning tools before starting to reduce risk of infection.
  • Timing of pruning depends on personal preference, with options including winter pruning and late summer pruning.
  • Young cherry trees should have central leader cut back in first year and prune four well-spaced lateral branches in second year.
  • Established sweet cherry trees require light pruning to remove weak or damaged branches and encourage fruit bud development.
  • Established sour or acid cherry trees require heavier pruning to remove a quarter of older wood.
  • Weeping cherry trees should have suckers removed and dead branches pruned in winter.

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Did You Know?

1. The art of pruning cherry trees dates back over 2,000 years to ancient Persia, where skilled horticulturists cultivated them to grow in manageable shapes for easier harvest.
2. Pruning a cherry tree in winter is highly discouraged as it leaves the tree more vulnerable to diseases like silver leaf. It is best to prune during late spring or early summer when the tree is actively growing and can better heal its wounds.
3. Cherry trees have a unique response known as “bud occlusion” – when one bud is removed, the adjacent buds automatically grow larger to compensate for the missing bud’s contribution to the tree’s overall growth.
4. To prevent the spread of diseases, it’s essential to sanitize pruning tools between each cut when working on a cherry tree. A simple solution of one part bleach to nine parts water can be used to clean the tools effectively.
5. Pruning cherry trees to a specific height is not just an aesthetic choice; it also has functional benefits. By keeping the tree short, it becomes easier to cover with netting to protect the cherries from hungry birds and other fruit-loving creatures.

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Importance Of Pruning For Cherry Trees

Pruning is essential for cherry trees as it helps maintain their health, shape, and maximizes fruit production. By removing specific branches and creating an open structure, pruning allows sunlight and air to penetrate the tree’s canopy, promoting more flowering and higher fruit production.

Furthermore, annual pruning helps balance the older fruiting wood with younger branches, keeping the tree compact for easier fruit picking. With careful selection of branches to remove, an open structure is achieved, improving access to sunlight, aeration, and preventing diseases. Pruning also encourages the growth of lateral branches and helps control the tree’s size.

Pruning Methods For Different Varieties Of Cherry Trees

Cherry trees come in several varieties, including sweet and sour cherries. The method of pruning will depend on the specific variety and how the tree is grown. For example, if the cherry tree is grown as a bush, against a wall, or in a weeping shape, different pruning techniques will be required.

Regardless of the variety, the main goal of pruning cherry trees is to create a well-balanced, open structure that allows for better sunlight exposure and airflow within the tree. This, in turn, enhances the tree’s ability to flower and produce fruit.

Tools And Timing For Pruning A Cherry Tree

Before starting to prune a cherry tree, it is important to disinfect pruning tools. This simple step reduces the risk of infections spreading from one branch to another. The tools needed for pruning a cherry tree include lopping shears, a pruning saw, and hand pruners or secateurs.

There are differing opinions on when to prune a cherry tree. Some prefer winter pruning when the tree is dormant, as it encourages growth and allows for better visibility of the tree’s structure. Others advocate for late summer pruning to avoid disease development and encourage slower growth. Pruning cherry trees in late summer, after the fruiting period, ensures that no potential sweet fruit-bearing blooms are inadvertently cut off.

Pruning Techniques For Young And Established Cherry Trees

When pruning young cherry trees, the central leader should be cut back in the first year, promoting lateral branch growth. In the second year, four well-spaced lateral branches should be chosen and shortened by two-thirds, while removing any side shoots below. In the third year, the strongest side shoots should be pruned back.

For established sweet cherry trees, light pruning is recommended, including shortening strong vertical growing shoots, removing crossing, weak, dead, damaged, or diseased branches, and shortening branch tips by about a third. This encourages fruit bud development and maintains the tree’s shape.

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In contrast, established sour or acid cherry trees require heavier pruning, involving the removal of dead, damaged, or diseased branches and approximately a quarter of the older wood. This ensures the tree remains healthy and productive.

  • First year pruning for young cherry trees: Cut back the central leader to promote lateral branch growth.
  • Second year pruning for young cherry trees: Choose four well-spaced lateral branches and shorten them by two-thirds, while removing side shoots below.
  • Third year pruning for young cherry trees: Prune back the strongest side shoots.
  • Pruning for established sweet cherry trees: Shorten strong vertical growing shoots, remove crossing, weak, dead, damaged, or diseased branches, and shorten branch tips by about a third.
  • Pruning for established sour or acid cherry trees: Remove dead, damaged, or diseased branches and approximately a quarter of the older wood.

Pruning tip: Light pruning encourages fruit bud development and maintains the tree’s shape.

Pruning Tips For Weeping Cherry Trees

Weeping cherry trees require specific pruning techniques to ensure their health. It is important to remove suckers, dead or dying branches, and any branches that come out from below the swelling near the top of the trunk. This should be done in the winter, pruning back to live wood. Additionally, weeping branches should be trimmed to fall at least six inches from the ground. It’s crucial to avoid removing more than 25 percent of the canopy at once to preserve the tree’s well-being.

Tips For Achieving A Well-Balanced, Open Canopy

To achieve a well-balanced, open canopy in cherry trees, it is vital to regularly prune and remove unwanted branches. The goal is to make as few cuts as possible while still achieving an open structure. By removing a few complete branches, an open structure can be created, allowing for better sunlight exposure to the remaining shoots.

Additionally, pruning promotes healthy growth and improved fruit production by increasing sunlight penetration and preventing the development of diseases. For sweet cherries, it is recommended to prune in late summer to avoid fungal and bacterial diseases. Summer pruning should be minimal, using thinning cuts to reduce energy for fruit production. Dormant pruning is more aggressive and should begin as late in winter as possible to minimize the risk of injury to the tree.

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Remember to always use appropriate tools, such as hand pruners, long-handled lopping shears, and a pruning saw, and to clean them before use. Regularly removing dead, diseased, or broken branches, along with suckers and weak branches that compete for nutrients, helps maintain a well-balanced and aesthetically appealing cherry tree.

Frequently Asked Questions

When should you prune cherry?

Cherry trees should be pruned annually, preferably right after the harvest season in late July or August. This timing is strategic as it coincides with a period when silver leaf disease and bacterial canker, two common issues for cherry trees, are less prevalent. However, if you have newly planted cherry trees, light formative pruning can be done in the spring, which can help shape the tree according to your preferences while promoting healthy growth. For more detailed instructions on initial pruning, please refer to our comprehensive guide.

What is the best fertilizer for cherry trees?

To nurture cherry trees, the ideal fertilizer would be one with a balanced nutrient ratio, such as a 5-10-10 or 10-15-15 formula. These cherry trees have a preference for low-nitrogen fertilizers. It is important to exercise caution regarding excessive fertilization since it can disrupt the tree’s equilibrium, resulting in decreased fruit production and increased vulnerability to pests and diseases.

How do you take a cutting from a cherry tree?

To successfully take a cutting from a cherry tree, identify a young branch with healthy leaves and a few leaf nodes, ideally from a tree that is no more than five years old. Ensure that your pruning shears are sharp and clean to prevent any potential infection. At a horizontal angle, make a clean cut of about 4 to 8 inches (10 to 20 cm.) from the chosen section of the tree.

How do you prune a cherry tree NZ?

To prune a cherry tree in New Zealand, it is recommended to primarily prune during the winter on a dry day for optimal results. Although light summer pruning is acceptable, the most effective technique involves implementing a central leader system with 3-5 lateral branches. It is advisable to allow the central leader to grow approximately 70cm before pruning the top, encouraging branch development. This process can be repeated to ensure a well-balanced and healthy cherry tree.

References: 1, 2, 3, 4

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