Can I Keep My Fruit Seedlings Alive Under Plastic?

Q: I have tomato seedlings, lemon seedlings, and pineapple plants in pots. Can I keep them alive under plastic in the backyard? 

A: It is almost impossible to keep warm-season vegetables alive in winter unless you have a greenhouse. Covering them with plastic brings a very real risk they will become too hot on a sunny winter afternoon. Conversely, keeping them warm on a freezing January night is difficult too. You are welcome to experiment, but I don’t think it will work.

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