 "Magnolia" × "thompsoniana" ‘Olmenhof’ arose in a garden ‘Olmenhof’ in Herk de Stad in Belgium.It has larger flowers and a longer flowering season than other forms of "M. thompsoniana".The elliptical to obovate leaves are 20–25 cm (8–10 in) in length, by 8–11 cm (3.2–4.2 in) wide.