We have decent sized window sills and natural southern exposure lighting. *One issue is radiators with vents and aluminum famed windows that are creating a tremendous down draft of cold air. I had purchased shelves to go in front of the radiators that the CPs could be placed on but that is a "no go" with the fire department in a class room. *The plants have to go back on the sills. *I picked up these clear ice cream sundae cups from McDonalds and placed them over each plant. What does everyone think?
Also too, should I stab a few vents in the tops of these little clear "hoods"?