This Bio-dynamic gardening text, first published over fifty years ago, seems more pertinent today than ever with the growing interest in healthy fresh grown food and the increasing concern about irreparable damage done to the environment by non-organic gardening and agricultural practices. Written by two pioneers in Bio-Dynamic agriculture, Ehrenfried Pfeiffer and Erika Riese, this book contains many valuable insights gained from years of experience working with the symbiotic relationships within a Bio-dynamic gardening system.