Depending on where you live, it is a little too cold now to grow peppers outdoors (they like warmth). In general, mini sweet bell peppers can grow in a 5-gallon pot, about 12 inches deep and 12 inches wide. One plant per pot. You can certainly grow them in a greenhouse. If you do not have a greenhouse, but have a location that will be about 70F to 80F or so in temperature consistently, then you can grow them indoors over winter. They will need about 14 to 16 hours of daylight or fluorescent grow lights (1 cool bulb type, 1 warm) per day. Set the plant lights about 4 to 6 inches above the plants. You will need to hand pollinate the flowers to encourage fruiting. Keep up with the watering. Good luck!
Depending on where you live, it is a little too cold now to grow peppers outdoors (they like warmth). In general, mini sweet bell peppers can grow in a 5-gallon pot, about 12 inches deep and 12 inches wide. One plant per pot. You can certainly grow them in a greenhouse. If you do not have a greenhouse, but have a location that will be about 70F to 80F or so in temperature consistently, then you can grow them indoors over winter. They will need about 14 to 16 hours of daylight or fluorescent grow lights (1 cool bulb type, 1 warm) per day. Set the plant lights about 4 to 6 inches above the plants. You will need to hand pollinate the flowers to encourage fruiting. Keep up with the watering. Good luck!