Veteran cacti expert Al Laius opens his definitive hardback with a simple distinction that clears up decades of common gardening confusion: all cacti are succulents, but not all succulents are cacti. In clear, accessible terms, the definition is a succulent is any plant that has adapted to store water in thick, fleshy leaves, stems, or roots to survive drought. A cactus, by contrast, belongs to the specific botanical family Cactaceae, distinguished by unique, cushion-like structures called areoles from which spines, branches, and flowers emerge. While these resilient plants typically call the vast deserts and scrublands of the Americas and southern or eastern Africa home, Laius points out a surprising local twist for British readers. The UK has two native succulents of its own—Sedum, which clings to dry walls and coastal rocks, and rock samphire, which thrives on sea spray along rocky shores.
Beyond native habitats, what gardeners really want to know is how to keep these plants alive and thriving at home. In temperate climates like the UK, cultivation usually means sunny indoor windowsills, conservatories, or unheated greenhouses, though certain hardy species can stay outdoors year-round as long as their roots never sit in waterlogged soil. To make domestic growing stress-free, Laius offers comprehensive advice on building free-draining, grit-heavy compost mixes, setting up seasonal fertiliser routines during active growth, and defending collections against stubborn pests like mealybugs and scale. He also provides detailed, step-by-step guidance on propagation, showing readers how to easily expand their collection using offsets, stem cuttings, and seeds.
The bulk of the book functions as an encyclopaedic directory, spanning comprehensive entries from Acanthocalycium all the way to Yucca. Each genus profile details light requirements, winter cold tolerance, and specific watering schedules, making it an invaluable reference for identifying and caring for individual specimens.
To help enthusiasts source rare plants or see mature, fully grown specimens in person, Laius curates an extensive network of UK specialist nurseries and public displays. Recommended growers include Cactus Shop in Devon, Abbey Brook in Cheshire, Ottershaw, Williams, Coach House, C&V, Tony Irons, Woodside, Piccolo, and Plantlife. For inspiration, he directs readers to world-class glasshouse collections across the UK, including the Royal Botanic Gardens at Kew, Ventnor, RHS gardens, the Eden Project, Lullingstone Castle, and Chester Zoo in England; Glasgow Botanic Gardens in Scotland; Belfast Botanic Gardens in Northern Ireland; and both Treborth and the National Botanic Garden of Wales. Whether you are potting your first windowsill cactus or planning a horticultural road trip, Laius’s handbook delivers the ideal mix of botanical depth and practical growing wisdom.
