by Rita Buchanan. Rita Buchanan has been studying and working with natural dyes for more than twenty years. In that time she has gained a wealth of knowledge that, through these pages, is being made available to you. From coreopsis to woad, from purple basil to marjoram, it?s all in here. Each 2-page write-up about a dye plant has a color strip on the right hand page showing what your approximate result might be. 112 pages, softcover