I need a greenhouse too. We’ve been at this home 5-1/2 years and STILL haven’t built a greenhouse! I miss my greenhouse!
I have not attempted to cultivate coffee. I think growing tea would be easier. The hardiest tea is hardy to one Zone south of me. It should be doable with winter protection.
@Myrth @amarand Would love a greenhouse! Last Mother Earth News had DIY plans. Someday.