Ton Hannink is vice president of the International Clematis Society; he is also a member of the British Clematis Society (BCS). Ton is the raiser of ‘De Vijhoeven’, ‘Marjan’, ‘Jurry’, ‘Irisevi’, ‘Rob Hannink’ and ‘Debbie Fischer’ amongst others. His primary interest amongst clematis are the small flowering species/cultivars. Crosses with these species/cultivars he finds very interesting. For many years Ton has organised a clematis festival in Holland and he lectures about clematis.