Which comes first the root or the leaf? Why are plants green? How fast does grass grow? Too fast for those who hate mowing! When is red and orange better for you than white?; when choosing onions. Why are white and grey plants more visible by moonlight? The answer to these and many more intriguing questions can be found in this authoritative and entertaining book by garden specialist Caroline Holmes. It makes the perfect present for curious gardeners and for anyone intrigued by the secret world of plants.