I have heard that evergreens create an acidic soil. I wondered if this was true, and if it would work to plant some evergreens in and around my blueberry bushes to help maintain an acidic soil for them.
Certified GKH Gardening Expert
While some evergreen plants may help acidify the soil, it isn't really a reliable way to ensure that your blueberries will get enough. For more information, these articles will help: https://www.gardeningknowhow.com/edible/fruits/blueberries/lower-soil-ph-blueberries.htm, https://www.gardeningknowhow.com/edible/fruits/blueberries/blueberry-fertilizer.htm