The Pruning of Trees, Shrubs and Conifers: Second Edition
Start With The Soil
Botany for Gardeners, 3rd Edition (Science for Gardeners)
Start with the Soil
Ralph Snodsmith's Fundamentals of Gardening
Cass Turnbull's Guide to Pruning, 3rd Edition: What, When, Where, and How to Prune for a More Beautiful Garden
Start With the Soil: The Organic Gardener's Guide to Improving Soil for Higher Yields, More Beautiful Flowers, and a Healthy, Easy-Care Garden
Horticulture as Therapy: Principles and Practice
An Illustrated Guide to Pruning