The size of blueberries depends on the variety. As a general rule, you can expect the following sizes:
Lowbush Varieties: 6 inches up to 2 feet tall
Highbush Varieties: 5 to 9 feet tall
Hybrid Half-High Varieties: 3 to 6 feet tall
Rabbiteye Varieties: 6 and 12 feet tall
The most commonly cultivated blueberry type, northern highbush blueberries, are typically 6 to 12 feet tall at maturity but can grow even taller in favorable conditions. The lowbush variety generally reaches a modest height of 1 to 2 feet. Most blueberries grow 18 to 48 inches high.
Blueberries come in different varieties, and each will typically reach a different size. As a general rule, you can expect the following:

Lowbush Varieties: 6 inches up to 2 feet tall
Highbush Varieties: 5 to 9 feet tall
Hybrid Half-High Varieties: 3 to 6 feet tall
Rabbiteye Varieties: 6 and 12 feet tall
Keep in mind that pruning matters, and some larger varieties can be pruned to be smaller, you’ll just need to be more aggressive with your pruning schedule.

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