Expanding your orchid collection. J. N. Rentoul. 1989.

This is the book for the orchid grower who wants to move beyond a standard collection to explore the challenges offered by some of the less common genera. Over a hundred genera are covered in detail in this beautiful and practical book, with 216 full-colour plates to delight every serious orchid grower.

The author provides notes on the appearance, history and habitat of each genus, as well as clarifying the confusing problems of nomenclature. He explains the influence of climate on seasonal patterns of growth, flowering and dormancy, and how and when to apply water and fertiliser: precise figures are given for ranges of temperature, shade and humidity where necessary. Every aspect of orchid culture for each genus is considered, including potting mixes, slab mounts, root moisture and air circulation.