After reading that tina at In The Garden insulated her entire greenhouse with bubble wrap, I started thinking that my tiny cold frame could benefit from a little insulation too.
There are little radish and lettuce sprouts in there.
This wasn't a high tech installation. I took some quick measurements, cut some bubble wrap I had saved from packages and put it along the walls of the cold frame. I used a little tape in the corners.
It rubs a little where it meets the sliding lids.
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