I've got 2 of those little plastic greenhouses that I mostly just use inside for starting seeds and then outside to harden plants off. But I've also got cattle panel arches. The last 2 years I moved plants outside into the greenhouses in the start of May (can plant in ground after Mother's Day but usually wait until closer to the end of May). I'm wondering if I wrapped the arches in greenhouse plastic and put the mini greenhouses inside the covered arches if it would be just enough warmer to move them outside mid April? I learned last year that the mini greenhouse wouldn't keep temps above freezing since I used one outside mid April to start some cool weather crops and there were a few nights it dropped down below freezing by a little bit. Thoughts?
