Answer Hi Gene,
Thanx for your question. There are numerous types of red peppers from sweet red bells, sweet red Italian frying peppers, red pimientos to hot ones like cayenne, jalapeno and serrano. Most peppers eventually turn a shade of red or maroon when they are fully ripen. Most peppers are propagated by starting from seed in a greenhouse or otherwise indoors under lights. I start mine in small pots in a spare room underneath a 40-watt shop light. Keep the soil moist but well drained and not soggy. Peppers will germinate in 2-3 weeks at 70-75F. They especially benefit from cooler temperatures once they have germinated, such as down to 60-65F. You can pot up the plants in separate pots once they have their second set of leaves arnd are about 3 inches tall. Make sure they get lots of light, that's why I use a shop light. Windowsill light in the northern areas of the world, result in leggy plants. Also, cooler growing temps will help keep the plants from getting leggy. (Leggy means, long and spindly and the plant eventually topples over onto the soil...) The earliest peppers will fruit in about 60-65 days after transplanting. Plants should be kept well watered, in full sun for at least 8 hours a day and they prefer warmth. Plants usually stop blooming when temps exceed 90F and will not set fruit well as the blossoms tend to abort and drop off the plant. Some of the hot chilis don't seem to mind scorching hot temps and bloom and fruit prolifically no matter how hot. Many peppers will produce profusely while others like large bells and certain types of frying peppers produce a limited number of fruit. I hope this helps.
I have been growing plants from seeds for at least 20 years. I have grown literally hundreds of different kinds of vegetables, trees, shrubs, annuals, perennials, tropicals, some cacti, water plants, iris, rose, lilies, cannas, etc. I enjoy starting from seed.
I've been growing my own seeds for 20 years with indoor propagation equipment I built myself. I am also an Allexperts volunteer on the perennial forum. I have completed the Master Gardener course through the Kansas State University Extension. I have experience with a wide variety of seeds and I have also read through Norm Deno's books on seed germination.