My mother and I purchased some pepper plants from Costco. The info card they came with (which identifies them as Capsicum annuum bell peppers†) depicts vibrant red bell peppers. However, they've started to sprout their fruit, and we're noticing they're distinctly green.
Mom hears tale that peppers turn red if you don't pick them from the plant. Is this fact, will the pepper change color when left on the plant past its full growth? Is this only for particular breeds of pepper? If it does change color, is there a specific length of time I should wait, or perhaps some way to tell when the color change is complete?
†The card doesn't clarify much past that. Just says "pepper" matures in "60-100 days", and talks about both mild peppers and hot peppers.