I have an area I want to put fruit bearing bushes in. Blueberries, Gooseberries and rasberries. I know they like acidic soil. I have taken a sample and we have a ph kit. My questions is, if I have to raise the acidity level in the soil (and I think I am going to have to), how do you do that? The area is about 10 feet by 15 feet and has been throughly tilled up, ready for plants as soon as I get the soil ready. One more question, what would be a good mulch for weed control? Thanks so much.