Peppers, tomatoes, and many other plants go to sleep at night, and wakeup each morning.
These are our Corno di Toro heirloom Italian peppers.
Tips for Planting Peppers
Pepper plants like to be warm, so if you are starting them from seed make sure to pamper them from day one. Only put them outside if it’s warm; a sunny window is a great place but be aware that the windowsill might be very cold at night. Don’t feel rushed to plant them outside either, a late cold spell can be bad news for your precious peppers.