I read about problems with blackberry bush not producing. Mine is over 6 years old and never has bloomed or produced fruit. It has put out new plants and spreading. Maybe it is the soil. Should I try and transplant next spring to better spot? The rest of my garden is fine. Get plenty of vegetables. I live in southern New Mexico.
Certified GKH Gardening Expert
If the site is generally good in terms of the light levels and other characteristics, you can try to amend the soil to the correct pH and nutrient levels for blackberries. A soil test can help you decide what to do.
Otherwise, you can replant to a site which you believe has better conditions. This article has advice on site selection and soil conditions for blackberries: