I'm just curious if anyone can help me figure out why my blueberries are not producing fruit. I got these two blueberries a few years ago and haven't really done much as far as care with them. I have been applying an acid fertilizer to lower the ph( its at 5-5.5 right now). From what I have seen these plants should be much larger than they are right now. They are probably 2 feet tall or so. They look really healthy but they are not producing any fruit or flowers for the past couple years. Could this be because they only get 4-5 hours of sun? I believe they are some kind of jersey highbush.