Posted: 26/02/2017 at 11:18
Similar problem on our site Terry, only about 60% are taken. Our site is clay so takes a lot of work to get it established but it's fertile soil and most crops flourish. I think it's a combination of lack of free time, other distractions and as a society we have got used to 'instant impact'. When people realise it might be 2 or 3 years before you get consistent results they lose interest.
I'm very lucky in that my allotment is only 200 yds from my house, almost all the worked plots are people who live within walking distance.