Peppers : Filius Blue
Small, colorful spicy peppers
Stunning 1.5" long fruits borne on foot-high ornamental plants, perfect for container growing. Fruits ripen from lavender to deep purple to orange and finally to red.Solanaceae Capsicum chinese
It's easy to save Pepper seed (so long as it is open pollinated and not a hybrid), just allow the fruits to ripen fully, then scrape out the seeds from the fruit before you eat it. Even the seed from green fruits may be viable, if not as good. Wear gloves when collecting seeds from hot peppers.
Though Peppers are mostly self-pollinated, they do cross-pollinate to some extent. To ensure purity you should just have one variety flowering at a time, or (if your garden is big enough) you should isolate them by 500 feet. You could also isolate them under row covers. Ideally you should have a minimum of 5 plants to ensure genetic variation.
Dry the seed thoroughly and store in a cool dry place. You must store Pepper seed carefully if it is to remain in good condition, ideally as close to freezing as possible, but not below.