Anyone with an allotment?

Your soild should not be "fucked" if it has had plants growing in it, like some healthy artichokes for example. Soil loses nutrients and becomes acidified if it is left bare, with nothing on it.

If your having persistent problems growing stuff it may be worth doing some soil tests.

But if this stuff has failed recently, it couldve just been the weather. Theres been fairly chilly/windy weather & night frosts recently.

Yep. some people grow potato plants for a couple of seasons to get the soil back up to pep.