Greenhouses sell their products at local grocers, markets, restaraunts, or even online through their own specific brand. These can be sold retail, directly to the public, or wholesale, to distribution companies. Products can include produce, landscaping shrubbery, flowers, trees, etc. Or, they can be artisan products like jams, jellies, butters, etc. made from the produce grown in the greenhouse.
Greenhouses can also make money through hosting events, classes, dinners, retreats, experiences, or hosting other kinds of activities that tickets can be sold to attend.