Source : Webster's Revised Unabridged Dictionary (1913)

Floriculture \Flo"ri*cul`ture\ (? or ?; 135, 277), n. [L. flos,
   floris, flower + cultura culture.]
   The cultivation of flowering plants.

Source : WordNet®

floriculture
     n : the cultivation of flowering plants [syn: {flower gardening}]