South African farmers Dean and Deon Barnard have set a new Guinness World Record by growing the world's heaviest plum, weighing 464.15 grams. This Autumn Treat variety plum surpasses the previous record of 109.78 grams held by a Kiyo plum from Japan in 2021. Grown at the Oppie Plaas Boerdery farm, which spans seven hectares, the Barnards achieved this feat without special preparations, attributing their success to a unique microclimate and expert soil management. They now aim to produce the world's first 500-gram plum.