Thinning Cherry Trees: Learn How And When To Thin Cherries

A couple of green (unripe) cherries on a cherry tree, after the rain
Image by alexandr6868

By Teo Spengler

Cherry fruit thinning means removing immature fruits from a heavily laden cherry tree. You thin a fruit tree to allow the remaining fruit to develop more fully and to help the fruit to set for the following year. Thinning cherry trees is usually not necessary. However, if your cherry tree has a heavy load on its branches, you might consider thinning it. Read on to learn how to thin out a cherry tree and when to thin cherries.

Thinning Cherry Trees

When you thin a fruit tree, it accomplishes more than just giving the remaining fruit more elbow room. Thinning trees also prevents limb breakage, especially if you thin fruit from branch tips. It can also keep the tree producing year after year, rather than having a big set one year and hardly anything the second.

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Most fruit trees, including cherries, thin themselves; that is, they drop excess or damaged fruit before it matures. This is sometimes termed “June drop” because it often happens at the beginning of summer.

For some trees, this self-thinning is sufficient. This is often the case with cherries. For that reason, thinning cherry trees is not regularly done.

When to Thin Cherries

If you decide that your cherry tree is overburdened by an immense load of immature fruit, you may decide to thin it. If you do, trim at the appropriate time, early enough that the remaining fruit have time to ripen.

You may wonder when to trim cherries. Generally, you should do cherry fruit thinning in early April. If the cultivar provides cherries later than usual, thin the tree up to mid-May.

How to Thin Out a Cherry Tree

When it comes to thinning cherry trees, you don’t need fancy equipment. Your hands will be sufficient unless the fruit is well above your reach. In that case, you may need to use pole-thinning equipment.

If you are hand thinning, start at one end of a branch and remove fruit as you go along. Do not leave more than 10 cherries on any one spur.

If you need to use pole thinning for thinning cherry trees, you strike a cluster of fruit with the pole just hard enough to dislodge enough to break up the cluster. You need to practice to get this right.

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