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The short answer is they’re both good, but it depends on on your lifestyle, hardiness zone, what you plan to grow, and how much snow you get. Here are some questions to consider before you choose.
If you want to have salads all winter long but cannot use plastic, try to time your sowings so that your plants are in the baby leaf stage by the first frost and can survive under fabric the rest of the season.
You can try winter sowing by direct-seeding spinach, arugula, mustard, beets, carrots, fava beans, or parsley under the protection of a plastic cover.
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