REPLANTING LARGE BLUEBERRY PLANTS
Thank you for your question.
Large, older blueberry bushes offer a nice opportunity and a challenge to the home grower. You get nice, mature plants in the first year, but you should not be getting any fruit from them in the year they are planted. They require the energy generally used to produce fruit to become established.
In general, before planting, the bushes should be pruned for air circulation and to exclude dead and crossing branches. The plants should be pruned no more than 1/3 of the live canopy. Soil should be amended for good drainage.
Those are some basics, but for a thorough understanding of blueberries, please download "Growing Blueberries in Your Home Garden" It can be found and downloaded at: https://catalog.extension.oregonstate.edu/sites/catalog.extension.oregonstate.edu/files/project/pdf/
I do hope that this has been helpful. Thank you very much for using Ask an Expert.