When can they go in Greenhouse?
I have an unheated greenhouse (the type with clear plastic, it has two sets of four tier shelves, more like a tent, not a permanent structure!!
Anyway, I have a ton of Cannas in storage, and absolutely no where to put them into the light when they come out, as all my shop lights are busy with seedlings.
We are averaging just above freezing temperatures now, but they are not falling much below that at night. Of course, a Canna cannot freeze! I would bring them in at night, but the greenhouse is a little warmer no matter what, and heats up with the least bit of sun.
So... what temps do I need to get them out?