Step 2: Fertilize the Soil
Proper fertilization of the soil is one of the most important factors that will influence how your plants grow – especially when it comes to blackberry plants, it’s vital to get the nutrient content of the soil right from the start.
The first step to deciding where your blackberry plants should grow is to prepare the soil: Loosen the soil with a garden fork and make sure that you remove any seeds, stalks, and rocks from the soil until you have a smoother consistency.
The next step is actually preparing the soil for planting or transplanting blackberries. They prefer soil with a moderate pH level (usually between five and seven), and will grow best in loose, sandier soil.
If the soil you have isn’t suitable to start off with, mix in organic-rich compost (which you can make yourself at home or purchase – just remember to check the pH levels after adjustments). Then, mix in some sand before planting.