Blueberry Maintenance 💚🌱 For blueberry plants 1 year and older: after the leaves have dropped in the fall and before new growth in the spring, prune the blueberry bushes. Remove any dead wood, blotchy-colored branches and the very low growth at the base. Thin out lateral and small, weak branches until you have removed a total of about 1/3-1/2 of the wood. We’re pruning lightly for most of these plants, as they’re still fairly young. Early spring is also a great time to add some natural fertili