So, I'm Canadian too, but I'm in Florida. Here we have lots of tender plants, grow veggies and annual flowers through the winter but we do get occasional frosts so I do a LOT of covering! Btw, I'd never use garbage bags or anything plastic unless I tented it away from the leaves. Plastic conducts the cold so if it sits against the leaves of a tender plant they will get nipped. Cardboard works much better.
Two comments on the Plankets,
First I'd like it better if it were a light color, or white. Even in winter our sun is pretty warm, and I'd worry that the dark color cloth sitting on the leaves might burn them. In March - when we did have frost this spring! - it absolutely would. My white frost cloth lets through about 70% of the sunlight and does not burn the plants even if I leave them on until noon (which I did once or twice - oops!) I also use it for shading transplants in the spring if it's hot. I got mine online, not at the big box store. It's much better quality.
Second thing, I like the straight tarp cover with the grommets rather than the one with the drawstrings. To me the idea of the covers is to trap the heat rising from the warm ground to keep the plant warm through the night. If the cover doesn't go all the way down to the ground or is neatly gathered around the plant with a drawstring, not nearly as much warmth will be trapped around the plant. Not saying it won't protect, but it sure won't protect as well.
Thanks for the demo, very cute video.
