Career
Working in the nursery of his home, Smedmore House, Corfe Castle, he crossed B. globosa with B. davidii, naming the new hybrid The initial F1 progeny were aesthetically poor, but Weyer persevered, crossing them to produce more strongly coloured F2 plants from which he made two selections he named "Moonlight" and "Golden Glow", which remain in commerce to this day. Over half a century later, "Sungold" was raised from a sport of "Golden Glow" in the Netherlands, and was used in hybridization experiments in the United States of America, leading to the release of small, sterile Buddlejas such as "Blue Chip". Weyer also hybridized B. globosa with B. madagascariensis circa 1920 and, several years later, B. globosa with B. brasiliensis, though neither appears to have had much horticultural merit and no cultivars are known.
Van de Weyer was the son of Lieutenant
Colonel Victor and Lady Emily (née Craven) van de Weyer, of New Lodge, Berkshire. Educated at Eton and Sandhurst, he was appointed aide de camp to the Lord-Lieutenant of Ireland before gaining the rank of Major in the service of the 3rd Battalion, Royal Berkshire Regiment.
Van de Weyer held the office of High Sheriff of Dorset in 1942.
