The most significant change in gardening in the last few years has been the renewed interest in hardy herbaceous perennials. These dependable plants that we are rediscovering, were well known to previous generations of gardeners. Only ornamental grasses are entirely new. Garden centres previously offered only a few grasses, such as Blue Fescue and Tuberous Oat Grass or non-hardy varieties of Fountain Grass for summer planting. The selection available today can provide hardy grasses for almost every garden purpose.