horticulturally,adv.|hɔːtɪˈkʌltjʊərəlɪ, -tʃər-| [See -ly2.] In the way of horticulture. 1899O. Wilde Importance of being Earnest ii. 69, I spoke horticulturally. My metaphor was drawn from fruits.1927Observer 27 Nov. 13/3 It is not only horticulturally that the Riviera is making ready.