I have had a bramble at the rear of my property ever since I've lived here(29 years and counting). I've always accepted that it was my duty to keep it under control and to that end have pruned it right back every autumn. My reward was a crop of very tasty Blackberries
Last autumn,however, some workmen turned up to get rid of the Ivy on the lock-up garages immediately behind my back fence. Not only did they deal with the ivy but took it upon themselves to take the brambles down to ground level too.
I feared the worst but I'd under-estimated the brambles will to re-establish it's presence. This year it has grown with a vigour I've never before witnessed
saddling me with the problem of keeping it withing bounds. My reward for all the extra work was not a single berry. Nor did it produce any blossom(always a favourite with the Bees)
Isn't nature wonderful!