Answer: Peppers are susceptible to frost bite. They like warm temperatures and warm soil. Wait to plant your transplants until after a week or two after the last frost date. If you have enough plants, you might want to stagger the planting dates for extra protection. Hardening them off is an excellent idea and continuing that will help reduce shock when you transplant them. The Virtual Gardener website has frost dates: http://www.vg.com/ Click on regional gardener. Many gardeners use Wall O' Waters to protect tomatoes from frost and get an early jump on the growing season. (It's basically a plastic cylinder with "walls" that you fill with water, which acts as an insulator.) It should work for peppers also, if you wanted to experiment with a few. I'm impressed with your list of peppers--I love spicy food!
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