Annuals and Tender Plants for North American Gardens is a heavy weight tome that is a definitive encyclopedic reference for serious gardeners who really want the full details on annual plants. Winterrowd has a handy chart at the beginning of each plant (identified by botanical name) with the critical points for fast skimming, but for those situations where more depth is needed, Winterrowd is right there with the answers. For example, he writes that Heliotrope cultivars with the riches colors and finest scents are generally propagated from cuttings and the plant may turn sulky during cool, moist nights – a valuable insight for anyone growing heliotrope.
Although the book is organized by botanical name for the 250 genera and 600 species - to avoid identity confusion, those that rely on common names will find a handy index of common names at the back of the book. Also in the back is a straightforward section on the techniques of growing annuals from an overview prospective.