Helga Urban A Pocket Compendium of Blue-flowering Plants for the Garden More than 130 plant profiles show you blue-flowering trees, shrubs, perennial herbs, bulbs and tuber plants, and annuals and biennials that you can use for creating splashes of blue in your garden. In addition to information on flowering times, flowering forms and colour, fruits, growth forms and foliage, there are hints and tips on the value of the plant in the garden and how best to use it. A simple system of symbols make it easy to recognise specific characteristics such as toxicity, flowering time, colour nuances, fragrance, light requirements, foliage and winter hardiness.