I’m always trying to learn more about gardening, but there is still so much I don’t know. So, I could use some help. I planted four blueberry bushes last spring. I got them from the same supplier (bare root) and planted them in a row. I heard they like it a bit acidic, and they are in a spot where pine needles drop each year. They are all on the north side of my garden, full sun. I treat them all the same, but two just look like they are dying while the other two are thriving and have blueberries on them. Any idea what the problem could be? They seem like they are in trouble, but I don’t know what to do!