Yellow peppers are one variety of sweet bell peppers that can be grown in the garden. When green peppers are fully mature, they take on shades of red, orange or yellow. Be sure that the variety you are purchasing matures to the hue you desire to avoid a surprise at the end of the growing season. Peppers are warm-weather plants and cannot tolerate a frost, so plant them outdoors only after all danger of frost has passed.
Fill your seedling pots with a rich, well-draining soil mixture. Water until the soil is moist but not soggy.
Plant the seeds 1/4 inch under the soil surface eight weeks before you will be transplanting them to the garden. Place the pot in a warm, sunny area until the seeds germinate, in 14 to 21 days.
Harden the plants off after the weather has stabilized and all danger of frost has passed. This is done by placing the plants outdoors in a sheltered area for several hours each day over the course of five to seven days.
Work compost into your garden soil. Yellow peppers are not picky about soil conditions as long as they get plenty of nutrients.
Plant the peppers 18 inches apart in the garden, and place a stake behind each seedling. As the plant grows, tie the main stem to the stake to help support the fruit it will bear. Keep the soil moist, but do not over-water.