How to Prune Blueberry Bushes for Maximum Yield

Blueberries are among the most neglected shrubs in home landscapes. People plant them, see a few berries in year three, and assume that's the normal output. In many cases, a few seasons of neglected pruning is the cause. Blueberry plants produce their best fruit on two- and three-year-old wood..

Blueberries are among the most neglected shrubs in home landscapes. People plant them, see a few berries in year three, and assume that's the normal output. In many cases, a few seasons of neglected pruning is the cause. Blueberry plants produce their best fruit on two- and three-year-old wood. Without annual pruning to remove old canes and stimulate new growth, the bush accumulates unproductive old wood and yield declines noticeably by year five or six.

I don't grow blueberries in my Melville yard — I've tried and the soil pH correction required to maintain 4.5—5.5 felt like too much ongoing maintenance given our naturally alkaline sandy loam. This guide is sourced from Cornell Cooperative Extension, Penn State Extension, NC State Extension, and Clemson HGIC.

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Why Blueberries Need Different Pruning Than Most Shrubs

The blueberry's fruiting biology drives its pruning requirements. Per Penn State Extension, blueberry fruit is borne on flower buds that develop on one-year-old shoots. The most productive shoots are those produced by vigorous two- and three-year-old canes. As canes age past four years, they become less productive and generate smaller, fewer berries.

The goal of pruning is to maintain a bush with roughly equal proportions of one-, two-, and three-year-old productive canes while steadily removing older, less productive wood.

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