Asked April 15, 2021, 1:55 PM EDT
I got my cool-weather seeds in about 10 days ago. Of course, I knew it could turn chilly again. Beets, Chard, Kale. A couple of the kale plants are starting to show.
Would it make sense to cover the 80 or so sq feet with black plastic, to retain warmth over the next few days? I also have a bale of straw, which may be enough to cover. Is there a better solution?
On a similar note: I have 2 clear-covered seed trays on heat mats. They are both under the same 4' grow-lite. One is all sprouted. The other, planted later, has not sprouted. I am keeping this one covered with cardboard to encourage sprouting. Anything wrong with this?
Lamoille County Vermont