Location, location, location. Choosing the right spot in your garden is the most important first step.
Like most fruits, blueberries do best when they have full sun all day. They can cope with a bit of shade, but if you want lots of blueberries off your bushes, they need to be planted in full sun.
They also prefer moist soil that is free-draining and has lots of organic matter. If your garden has heavy clay soil, you will need to add plenty of other materials like good quality compost or peat moss before you plant your blueberry bushes.
Unlike most other fruits, blueberries need soil with an acidic pH: ideally between 4.0 and 5.0. Remember water is pH neutral at 7 so blueberries really like their acid! If you have neutral or alkaline soil, you are going to need to lower the pH considerably before planting your blueberry bushes or they will not thrive at all.
You can get a soil tester at your local home & garden centre and make sure you follow the instructions carefully.
How do you lower the pH of your soil?
Add organic matter – You can add organic matter to your soil annually for a gradual pH-lowering effect – peat is an excellent choice. But, not in heavy clay soils – you need to call in the big guns!
Add aluminum sulfate – it creates acidity in the soil instantly as soon as it dissolves. Find it at your local garden centre or hardware supplier
Add sulfur – this is cheaper than aluminium sulphate but is also slower to act