Peppers can be grown from seed, or bought as baby plants. They're easy enough to grow from seed so give it a go. In March/April fill a 9cm pot with soil and plant 2 seeds about 13mm down. Put the pot in a propagator or on a window sill. Once a couple of cm tall think out the weakest plant, and allow the other to get to about 10cm. They can be planted in pots outside, or even in the ground but you may well struggle to get them to fully develop in colder climates. The will thrive best in greenhouse (whether it be cold or heated). Wherever they are planted, make sure you water reguarly (to ensure the swelling of the fruit) and prodive a thin stake as support). As soon as the peppers reach a reasonable size just harvest them. Peppers are perfect to be used in salads, with a main meal, or as a healthy snack.