An infographic-style video, released as part of the "Writtle Futures" campaign, aims to make the subject area more appealing to a younger audience and communicate the diverse nature of the industry.
The RHS, Lantra, BALI, Chartered Institute of Horticulture and GROW are all backing the campaign.
Writtle marketing manager Craig Emery said: "People are always surprised to see the range of careers available to students after they have completed a horticulture course. A lot of the younger generation may view horticulture as purely gardening, but it is so much more than that.
"As long as a student has a passion and drive to make a difference, then the world of horticulture is open to them. There is a huge demand for people within the industry. Hopefully this campaign will change a few perceptions and encourage more people to consider it as a career path after school or college."