Radishes: The first thing I ever grew I am, according to a recent RHS press release, part of a lost generation. A generation whose gardening skills are eclipsed by those of our parents, grandparents and, increasingly, our children. Enthralled by my first row of radishes sown aged about four, under the wing of my botanical uncle, I got the bug early and continued through a childhood of growing sweet peas and foraging fruit. I loved natural history, botany and biology. I wanted to be David Attenborough when I grew up. Or Gerald Durrell. Or the Swiss Family Robinson. Or to present Tomorrow’s World. But whether too deep in classic children’s literature or just a bit slow on the uptake, it never really occurred to me that my keen, green fingers were a generational anomaly. I didn’t care much, either. I figured that they would grow into it, cos lots of older people are into gardening, right? Right. According to the RHS 55% of people were taught gardening in school in the 1950s...