"I'm on a mission to get more of us to grow British wild flowers in our gardens. As ever-increasing numbers of these plants vanish from the countryside, our own private spaces become more important – and genuinely useful. Between us, our gardens cover more than a million acres, which far exceeds the total area of all our nature reserves. We need to think of our gardens as little reservoirs in which British biodiversity can survive. In time, it will spread out from there, but if we make our gardens wild flower hot spots, then at least we know things aren't disappearing at quite such a rate. There's plenty of evidence from the work of etymologists such as Dr (see her brilliant book Wildlife Of A Garden: A Thirty-Year Study) that gardens can provide rich s, with flowers the key part of that ."