I took Molly's suggestion and googled it. The article I read said prune only cautiously as it limits berry production the next year. It seems berries grow on one year old wood. But these are 8 - 10 feet tall! Also, we don't like blueberries; Dad does. So, should we prune back to a manageable heighth and force Dad to wait a year for his berries? Or should we let it go; Dad may not get berries anyway as he doesn't want to pick 'em.
I'm off to read about azaela care... when to prune, fertilize and mulch.
an idea on blueberries.. keep the bushes (dad might not be around that much longer).. have him every couple days invite someone over to help them selves to a couple quarts but with the stipulation, free berries for you but pick a quart for me (because I am unable/too lazy/like the little red hen story etc). He will have a nice supply & be able to share with others. Or people from church could have ONE picking day & have a nice supply for him.. if they make preserves or a pie, give some (piece pie, jar jam) to him.
I never had good luck freezing blueberries. they were always rubbery. I do like them fresh & in pies though - but fresh in pies. not frozen