A Simple Summer Prune for Apple Trees That Determines Next Year’s Heavy Crop

If you want a truly generous apple harvest next season, it’s important not to miss the summer prune. At this time of year, you can clearly show the tree where to direct its energy. The aim isn’t to grow the longest possible new branches, but to encourage the formation of flower buds that will later develop into the crop.

Many fruit trees form the most flower buds on shorter shoots. You’ll often find these short fruiting spurs mainly in the lower part of the canopy, where they grow steadily without unnecessary, lush extension.

What fruiting spurs are and why you should keep an eye on them

Short shoots on which a tree reliably sets flowers and fruit are known as fruiting spurs. They grow more slowly than long current-season shoots, and gardeners usually leave them in place because they’re valuable. Only parts that are diseased, dying back, in the way, or making the canopy too crowded are removed.

To encourage more of this spur growth, you need to shorten this year’s strong shoots. This curbs excessive extension growth and the tree starts investing more in bud initiation.

How to do a summer prune step by step

Get a pair of sharp, clean secateurs ready. With summer pruning, accuracy pays off, because a poorly placed cut can weaken a shoot unnecessarily. Stick to two simple rules used on trees with an already well-formed crown.

Shortening the main strong shoots

On each prominent main current-season shoot, shorten roughly two thirds of its length. Make the cut just above a chosen bud so it’s clean and the tree can recover well. This is the key cut that limits extension growth and steers the tree toward forming fruiting wood.

More severe shortening of side shoots

Side shoots are shortened even more than the main shoots. Leave only two to three buds from the point where they grow out of the parent branch. This helps lateral shoots quickly turn into short fruiting spurs, which are crucial for future yields.

The purpose of summer pruning is to prompt the tree to form flower buds and strengthen fruiting spurs instead of extending shoots.

Repeating it every year brings the best results

This type of pruning has the greatest effect when it’s done regularly every year on trees that already have their canopy shape established. That way the crown stays balanced, doesn’t overgrow, and the tree maintains enough fruiting spurs in the right places.

It’s not just for apple trees

The advantage of this approach is how widely it can be used. Using the same principle, you can also encourage fruiting spur development on ornamental crabapples, pears, medlars, and mulberries. So if you grow several species, it’s worth learning this simple summer prune and applying the same logic to your other trees.

Source: Záhrada, Gardening Know How, Pestrazahrada.cz