Why does my cherry tree blossom but never fruit? What's the most effective slug deterrent? Could I breed my own unique variety of flower? The world of gardening can be a mystifying place, with so many instructions to follow and often little explanation as to why. Covering everything from hands-on advice to an exploration of the mental health benefits of gardening, sustainable practices and the positive impact gardening can have on global warming, this book debunks myths and applies the latest science being taught at horticultural college.