Science and the garden : the scientific basis of horticultural practice Diversity in the plant world The plant body : structure and function Reproduction : securing the future Naming plants Selecting and breeding plants Soils and roots Soil cultivation and fertility The plant environment : light and water Plants and seasons Growing plants from seed Vegetative propagation Size and form Colour scent and sound in the garden Climate and weather Climate and other environmental changes Protected cultivation The diversity of the undesirables Controlling the undesirables Maturation ripening and storage Garden ecology Garden wildlife and conservation Low input and low impact gardening Health well being and socio cultural benefits Gardens for science