Raspberry cane advice

Fo some eason the row of raspberries I planted have done nothing? The only decent crop I have had is from single plants that have popped up neaby

Mine are the same. They don't seem to like where they were put and much prefer coming up in the middle of red /back currant bushes and one has even made for the nearby polytunnel which has been giving me enough lately to eat on scones or with ice cream. I think they exhaust the soil of nutrients they need (the nettles still seem happy there) and move. Just my thoughts.