noun (n)

• someone concerned with the science or art or business of cultivating the soil(noun.person)

  Synonym:
  agriculturalist, agriculturist, cultivator, raiser
  

  source: wordnet30
• One who grows or produces; as, a grower of corn; also, that which grows or increases; as, a vine may be a rank or a slow grower.(noun)

  source: webster1913