Career
He was also a student of the temperate terrestrial orchids of Belgium and France. An inveterate traveler, he was the patron and editor of a journal devoted to bamboo, Le Bambou, which he published in 1906 to 1908. Over many decades he freely disseminated exotic bamboos to public and private gardens, testing them for hardiness in northern Europe.
His archaeological interests were stimulated by the Neolithic flint mines of Spiennes, near Mons.
Rather than sell his land for a cemetery for German soldiers after the First World War, Houzeau de Lehaie donated the land for the Street Symphorien Commonwealth War Graves Commission cemetery on the condition that it receive, amicably in death, German and Commonwealth graves.
