There are no green thumbs or black thumbs. There are only gardeners and non-gardeners. Gardeners are the ones who ruin after ruin get on with the high defiance of nature herself, creating, in the very face of her chaos and tornado, the bower of roses and the pride of irises. It sounds very well to garden a 'natural way'. You may see the natural way in any desert, any swamp, any leech-filled laurel hell. Defiance, on the other hand, is what makes gardeners.