Sweet bell peppers need a big root system to support a larger plant. I have learned peppers do not like our hard TN soil but if I add lots of peat moss to make soil soft so roots can grow quick & easy plants do many times better. Our soil is not too hard for other plants but is too hard for peppers. Plants do not like our hot weather so I plant them under the east side of a shade tree so they get a few hours of early morning sun coolest time of the morning. I want my plants to have no direct sun from 12 noon to dark. I use 6-12-12 fertilizer. Too much nitrogen plants grow 7 ft tall with not many peppers. Plants need P & K. P is for large roots and K produces lots of blossoms that become peppers. Our last frost is April 20 I plants peppers in the garden about April 20 sometimes April 1st tiny plants are easy to cover up if we get more frost. We have a very short spring we often have 85 to 90 degree temperatures by June 1st if I can keep plants out of the hot sun & hot temperature we might get a 2 or 3 peppers in spring. Not many peppers if any all summer plants don't like our hot weather. Plants grow larger all summer then when weather changes Oct 1st cool weather plants load up with about 60 blossoms each that will all become peppers as long as the soil continues to have plenty of P & K. If soil has P & K shortage plants drop the blossoms. Plants need to continue to have a small amount of N but not much. Cutting off leaves has turned out to be very helpful to produce larger peppers & more peppers. If too much of the plants energy goes into growing leaves you get smaller peppers & fewer peppers. If you can't plant peppers in your garden soil then try a 20 gallon pot. After my plants are 5 ft tall I get very greedy with nitrogen I fertilize them with 0-20-20 most of the summer then give them more 6-12-12 late Sept so plants load up with blossoms. Limbs get very heavy with peppers they need to be tied up or use tomato cages to hold them up so limbs don't break off. Roots like even soil moisture they do very well for me planted in garden soil. If soil moisture gets too low plant will drop blossoms.imafan26 wrote: ↑Sun Oct 24, 2021 10:09 amI'm jealous. How do you get so many peppers? I can get lots of hot peppers but the bell peppers elude me. If I am lucky, and I plant a giant variety I may get 3-5 good sized peppers and that is it. There won't be anymore or they will be minis. I grow them mostly in 1 gallon pots, if they survive that I pot them up to larger pots. (Usually only the hot peppers make it to the bigger pots). I grow them in either potting soil or peat lite and they are fertilized with 6-4-6 with micros. I do have a lot of issues with bacterial spot and nematodes so that is why most of the peppers are in pots in the first place and I only have a few peppers that are not giant varieties that are resistant to bacterial spot. They produce small peppers at best. My hours of daylight are max just short of 14 hours and the minimum around 11 hours. Temperature 69-81 this year.
If your winter temperatures are anything like Arizona winter, now is a very good time to grow sweet bell peppers. I planted peppers Nov 1 in AZ it was 65 degrees during the day Dec to Feb plants stayed loaded with peppers for 3 month. Full sun in winter was no problem for sweet bell peppers.