Horticulturist rhymes with:
futurist, behaviorist, consumerist, counterterrorist, flavorist, futurist, gilchrest, gilcrest, monetarist, motorist, sechrest, sechrist, secrest, secrist, secularist, segrest, terrorist, theorist
futurist, behaviorist, consumerist, counterterrorist, flavorist, futurist, gilchrest, gilcrest, monetarist, motorist, sechrest, sechrist, secrest, secrist, secularist, segrest, terrorist, theorist