Environmental Studies to Horticulture

Hi,

I'm currently doing my masters in environmental studies (same as my undergrad) at the University of Pennsylvania. I'm looking to eventually move into horticulture or a related field. I have some experience in horticulture, such as working at a nursery and writing my undergraduate thesis on urban agroforestry and in order to move more in that direction, I was looking at a few possibilities.

There is an in-person certificate in ecological horticulture at Penn's associated arboretum/botanical garden (link: https://www.morrisarboretum.org/learn-discover/certificate-ecological-horticulture) or I could look into horticulture offerings at local community colleges. Would either of these routes be worth looking in to?

Thanks!