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Also asked, do I need two blueberry plants?
Answer:Blueberry plants are self-fertile (each flower has the necessary male and female parts), however you still should buy more than one variety. That's because a blueberry plant produces more berries and bigger berries when it cross pollinates with a different blueberry variety.
Then, how many blueberry plants do you need?
Whether or not you need at least two blueberry bushes to get fruit depends on the type of blueberry bushes you have. The two main types of blueberries are highbush blueberries (Vaccinium corymbosum) and rabbiteye blueberries (V. ashei).
Blueberry plants have both male and female flowers on each bush. Depending on the cultivar, they are moderately to highly self-fertile, but benefit greatly from being planted with other cultivars to improve pollination. For plentiful summer berries, plant two bushes per berry-loving family member.