Which plants will survive and can I use grey water? Gardening as UK summers get drier

The image of Beth Chatto's gravel gardens—once the gold standard of drought-resilient planting—turning brown is more than a horticultural footnote; it is a canary in the coal mine for the UK's changing climate. Chatto's vision in the 1970s was prescient, but even her carefully selected Mediterranean and steppe species are now hitting their physiological limits. When the driest county's most celebrated dry garden shows stress, homeowners across Britain need to recalibrate their expectations of what "resilient" actually means. The grey water question is particularly urgent and layered. As water restrictions become more common across southern England, using household wastewater for gardens is an appealing solution, but it carries risks—detergents, salts, and contaminants can degrade soil health over time. The advice from Chatto's head gardener likely walks a careful line between pragmatism and caution, and that nuance matters. We cannot treat grey water as a silver bullet; it is a tool that requires knowledge, particularly around which plants tolerate it and which will suffer. This story connects to broader themes of national water security, changing biodiversity, and the psychological shift required as we move from "gardening for beauty" to "gardening for survival." The UK's relationship with its gardens is deeply cultural—a nation of green thumbs is now facing the reality that the green may be harder to maintain. The adaptation happening at Chatto's garden is a microcosm of what agriculture, urban planning, and public policy must embrace at scale. Source: https://www.theguardian.com/lifeandstyle/2026/aug/16/which-plants-survive-use-grey-water-gardening-uk-drought