Do you give classes on greenhouse gardening? If so, when?
We are not offering classes on greenhouse gardening here at PHS.
However, the Hobby Greenhouse Association lists the Indoor Plant Society of the Delaware Valley as a member of the organization, and you might want to get in touch with this group.
Also, please check one of our library subject guides, the Philadelphia Gardening Guide
Click on the Organizations tab for more information about organizations, classes, and other information that might be helpful for you in finding a good class.