The Collaborative International Dictionary of English v.0.48:
Floriculture \Flo"ri*cul`ture\ (? or ?; 135, 277), n. [L. flos, floris, flower + cultura culture.] The cultivation of flowering plants. [1913 Webster]WordNet (r) 3.0 (2006):
floriculture n 1: the cultivation of flowering plants [syn: flower gardening, floriculture]