Growing bell peppers in a grow bag is easy. Bell peppers require a grow bag that is at least 10-12 inches deep and wide. Fill your bag with the best quality potting mix that is well drained, loose and fertile, rich in organic matter. Peppers love the sun. When growing bell peppers in pots, keep them in a position that receives at least 6 hours of sunlight daily. They should be sheltered from strong wind. Peppers require regular watering to keep the soil moist. They should never dry out completely. Water the plant at the foot or the base of the plant. The ideal growing temperature is between 70-90 degrees Fahrenheit. Cover the base of the plant with organic matter such as leaves, pine bark, straw, paper or whatever is readily available to you. Pepper plants are heavy feeders so you will need to fertilize the plant every 15 days or so. Use Epsom salt (2tsp/gallon water) each month. This improves the health and increases the yield of your pepper plants. In the early stages of your pepper plant, pinch growing tips regularly to make bushier. Pepper plants are self fertile, so you don’t need to care about pollination. To get better fruits and to improve productivity, you can gently shake the plants when they are in bloom. You may need to support the bell pepper plant. You can use a tomato cage or poke a stick near the main stem and tie the plant to it. Harvesting Bell Peppers - Bell peppers are ready for harvesting in 60-90 days. You can harvest them green when they reach full size. If left to ripen, the color will change into orange, yellow or red.