I'm thinking of moving the chinenses outdoors this weekend to begin hardening off even though plant-out won't be until mid-to late May. I'm looking at sunny days ahead...some cloudy...and it seems a waste to keep them under these T8s with the sun at my disposal now.
Here's what I'm thinking. I'll put them under a sheet of plywood supported by cinder blocks. I'll remove it during the day, and cover them at night. I'll also lay a large tarp over everything at night. My only question is how to heat the plants at night should temps drop into the high 30s, which is likely. What would be a cheap, simple, and effective way to protect them from sub-40 degree temps at night?
Here's what I'm thinking. I'll put them under a sheet of plywood supported by cinder blocks. I'll remove it during the day, and cover them at night. I'll also lay a large tarp over everything at night. My only question is how to heat the plants at night should temps drop into the high 30s, which is likely. What would be a cheap, simple, and effective way to protect them from sub-40 degree temps at night?