Capsicum are long lived plants and if the right conditions are met plants can live indefinitely. Plants well only get stronger and yield more and more as the years go by. A plant that has being wintered has a very good head start on the year. If you think about starting your plants in early March to get a good crop, then having plants that already have a big root mass are way ahead. They will start to bear fruit way ahead. If using bigger pots, fertilizer and compost high in nitrogen, then your yields will be two to three times higher.
It can sometimes be difficult to keep plants alive when you first bring them in. Plants need the right conditions. Some varieties winter very well others do not. All varieties can be wintered under the right conditions.
First. the plant needs to be cut back. See pictures below
Second. the soil needs to be almost dry...because the plants water uptake will be almost zero. And if plants are too wet the roots will rot.
Third. plants need the right amount of light. If you plan to just winter your plants a sunny window or florescent light will be fine. If you plan to try and get fruit off your plants you will need high light source. If you are interested in trying to get fruit off over the winter please see our pages on Harvesting peppers year round
Forth. plants need the right temperature. To just over winter your plants all you need is temps around 14c to 20c or 65f to 70f and if your are going to try and get fruit off you will needed temps from 22c to 27c or 75f to 85f.
As you can see this plant was cut back about 2-3 weeks ago and is coming back nicely
Once you have done this a couple of times you will see how easy it is to keep plants live over winter. Now if you want to take it to the next level you can try making your winter plants into Bonchili. There is not much to making Bonchili out of your plants plaese see our new Growing Bonchili
More to come