Crowood Gardening Guides have become the indispensable handbooks for the keen gardener who wants his information clear, practical, and full of color. The greenhouse opens up a new dimension to gardening; making tropical conditions, a temperate room, or even an alpine house a possibility. This practical guide adopts a simple and logical approach to what to do and when for the best results. Routine tasks as well as new ideas are included in any easy-to-follow monthly calendar of progress in the greenhouse.