Might be able to offer suggestions for other parts of the process but probably not this part.
Do you literally mean greenhouse, like an outdoor glass structure?
( mofaha ┐( ˘_˘)┌ ʅ(́◡◝)ʃ, Tue 9 May 2023, 16:02, archived)

I do

( mr horrible up yours, dickface, Tue 9 May 2023, 17:07, archived)