horticulturist vs plantsman

horticulturist and plantsman both are nouns.

Word	Noun	Adjective	Verb	Adverb
horticulturist	Yes	No	No	No
plantsman	Yes	No	No	No

As nouns, horticulturist and plantsman are synonyms defined as:

horticulturist and plantsman: an expert in the science of cultivating plants (fruit or flowers or vegetables or ornamental plants)

horticulturist (noun)	plantsman (noun)
an expert in the science of cultivating plants (fruit or flowers or vegetables or ornamental plants)	an expert in the science of cultivating plants (fruit or flowers or vegetables or ornamental plants)