A seemingly innocuous piece of lifestyle advice - a list of four plants and trees homeowners should avoid - carries far more weight for the UK property market than its garden-column origins suggest. Japanese knotweed, leylandii hedging, ivy, and fast-growing trees such as willow or poplar are named as the chief offenders, and each one has a documented history of triggering mortgage refusals, insurance disputes, and six-figure devaluations. For an industry obsessed with EPC ratings, cladding liabilities and subsidence claims, this is a reminder that value destruction sometimes starts at ground level, quite literally.