Hi-- I am brand new to blueberry growing, so I am starting with a few "test" bushes. I have done some reading, but I have read a lot of conflicting information. I'm hoping someone out there can share what works for you. I'm dealing with heavily clay soil in VA (which I'm guessing isn't acidic enough). I will be planting on a hill, as all the flat ground seems to hold standing water (perhaps because of the clay?). I thought I should dig a wide hole about a foot deep, and place a mixture of sphagnum moss, potting soil, and maybe coffee grounds, pine bark, or sulfure mixture to help up the acid? Again, I'm all new to this. Do you have to water them? If so, should I add some white vinegar to the water to up acidity? Any help or advice would be appreciated!