Susie Holmes is a chartered soil scientist and keen gardener. She is a horticultural consultant to growers, landscapers and garden designers and regularly teaches on soil and plant science courses. Susie has a particular interest in soil health and how we can get the best out of the soil in our gardens and allotments by working alongside nature. Neil Bragg holds degrees in Agricultural Chemistry and Soil Science and has worked as a soil scientist in horticulture for over forty years. He has advised growers on the physical requirements for healthy plant growth and worked extensively on the nutritional requirements of plants, both in soils and soilless substrates. Neil has been a regular contributor of articles for the press and horticulture science journals, and is a frequent speaker to both grower groups and gardening club societies.