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Best practices: prune olive trees in spring or in early summer after the tree begins to open its flower buds. (TIP: Pruning an olive tree while it’s blooming allows you to assess the probable crop before you trim.) Shaping the tree – Beginning with its fourth year after planting, prune your olive tree. Trimming Fruitless Olive Trees Step 1.

Wait until the winter months when the fruitless olive tree is dormant and has dropped all of its leaves. Step 2. Look down near the base of the fruitless olive tree trunk and follow it upward to locate any suckers.

Fertilize every month.

Step 3. Examine each of the branches closely. The most common tool you’re going to use for your olive tree pruning is shears. Make sure you get pruning shears instead of grass shears, as the latter should be used for trimming your lawn. Some people call pruning shears hand pruners because they’re a handheld device. You get two handles coated in rubber or another soft treeclear.barted Reading Time: 7 mins.