Blueberry bush leaves
This year my blueberry bushes did not leaf out fully. They are green, but did not fully develop. I have always mulched with pine needles and oak leaves to give soil an acid ph. Would this be the problem? We have clay soil.
Thank you for your question for eXtension. Blueberry bushes do require acidic soil, so pine needles and oak leaves should be a good mulching material for your plants.
The topic area in which you've made a request will require sampling and or physical observation for diagnosis. We are not able to provide a definitive diagnosis for your plants.
Please consider contacting the Cooperative Extension office closest to you. Simply go to http://articles.extension.org, drop in your zip code and choose the office that is most convenient for you. We apologize that we can't help you right now, but please come back to eXtension to check in as we grow and add experts.