Raspberry lifespan ?
On my allotment I have some Raspberry canes that are a few years old. In a fruit cage. they have clumps of grass around their roots but the new canes look good. They didn’t fruit well this year but maybe due to neglect My dilemma is ...... shall I dig them all up and plant new ones ? Or shall I pursue the old ones with better care ? I am not sure how many years they can last Thanks in advance for any advice