This work investigates the aesthetic and practical application of grey and silver-foliaged plants within the context of garden design and landscape architecture. The author, Desmond Underwood, draws upon his extensive horticultural experience to categorize species that offer unique textural and color-based contributions to the garden. The text provides a systematic framework for integrating these specific plants to enhance light reflection, contrast, and structural interest in various planting schemes.

The text serves as a specialized reference for gardeners and landscape designers seeking to master the use of non-green foliage in garden compositions. Its focus on specific color palettes and textural contrast suggests a high level of technical utility for those interested in advanced planting design.