Black raspberry plants prefer full sunlight and soil that drains well. When choosing your planting site, make sure there is water available during times of little rain.
Preparing the Site and Soil For Black Raspberry Plants
Do not grow black raspberry plants in the same land which has grown potatoes, tomatoes, peppers or eggplant in the last 4 years. Those plants can carry a root rot that can destroy the raspberry root. Also, wild raspberry plants within 600 feet can destroy your cultivated plants. Destroy the wild ones.
The soil can take up to 2 years to prepare before plants your black raspberry crops. The pH level needs to be between 5.6 and 6.2. The soil may need to have ground limestone added to increase the pH. To increase the soil's richness, you can grow oats for 1 year. Plant the oat crops twice and plow them back into the ground before they go to seed.