Orchid Basics: A Step-by-Step Guide to Growing and General Care
Orchids have been cultivated in China for nearly 3,000 years, but it wasn't until the late 17th century that tropical orchids from South and Central America found their way to Europe, where they ignited a blaze of controversy. InOrchid Basics, author Isobyl la Croix provides an introduction to the seductive flower that will both inflame interest and demystify the growing process.Orchids are found on every continent except Antarctica. Between one-half and three-quarters are epiphytic, meaning they grow on other plants, while the remainder, the terrestrial orchids, grow on the ground. Both can be successfully cultivated in greenhouses, but care needs to be taken in the construction, as orchids are discriminating plants. For most species, la Croix suggests glass or polycarbonate sheeting with shaded interiors and  high humidity. Orchids can be started as houseplants as long as they are kept warm and humid (kitchens and bathrooms tend to be best). She explains the best types of potting composts to use, the right temperature, the correct amount of fertilizer, and how to water your orchids. "Far more orchids die from overwatering than underwatering," warns la Croix. Black spots and blotches on the leaves are the first sign.Orchid Basicshas a chapter on each of the three most common greenhouse types--cool, intermediate, and warm--and descriptions of the best types of orchids grown in each. A full-color photo accompanies most  descriptions. Although la Croix includes bits of history, this is primarily a scientific gardening manual to nurture the bold and enchanting bulb.--Dana Van Nest