Growing peppers indoors is difficult, especially for beginners.
Peppers require a very specific growing environment and following these guidelines should help you get some good results.
In this page we will focus on growing sweet peppers.
Information to get started growing peppers indoors in your home:
- Choosing & Planting the seeds- What you need to know about which seeds you should pick for the best crop.
With pepper plants, you should focus on choosing a more compact plant variety.
This is mainly due to the size restrictions with growing indoors and usually you can find a variety that will still produce full size fruits too. You will still need a container about 15 inches in diameter and around 12 inches deep for each plant that you plan to grow.
Also, when planting pepper, try to plan a position for the plant to grow through it’s full growth period as any interruption could be damaging to the production on the plant.
You should aim to plant quite a few seeds about 1/2 inch deep for each container as you will find that the success rate of each seed that you sow to be quite low and not all seeds will germinate. If you get more than 1 plant in each container, thin out the weaker seedlings to help the stronger ones.
Tip – When the pepper plants grow a few inches tall, you can build soil up against the main stem to act as a support for the plant and help it build its strength.
Peppers prefer soil that is very sandy. The recommended pH is around 7.0.
- Light & Temperature - How to provide the correct environment for your plants to ensure growth.
It is important to provide peppers with plenty of ventilation in the the early stages of life so that they do not get overheated.
Pepper plants will only produce peppers at high temperatures, which is the main challenge for the indoor gardener and will require the utilisation of a grow lighting system if you do not live in a hot climate. Be prepared and aim to provide temperatures of 20-25 degrees Celsius as the plants begin to blossom.
As Pepper plants are sun loving plants, you may find that you will need to provide a lot of light as well to ensure that the plants will fruit – especially in the early stages of the plant’s life.
You should provide as much strong light for as long as possible. Some studies suggest that shorter lengths of light may have some benefit, but this can differ between varieties and is by no means a proven method.
- Watering – Watering techniques specifically for peppers.
For plants in the early stages of life, you will need to provide a lot of water and you should ensure that the soil always remains relatively moist until the plants around 5-7 inches high.
The plants will require much less watering as they grow in size and you should be able to let the soil become drier between waterings.
- Feeding & Nutrition – How to make sure that your plants get all the nutrients that they need in order to survive and produce juicy fruits!
As pepper plants are delicate in the early stages of life, you will not need to feed them as they should take all the necessary nutrients from the soil.
Once they have grown their first few leaves, you should give them their first feeding. To do this simply dissolve some plant food into water and water the plants as normal. Repeat this monthly.
- Pollination – How to ensure that your plants are productive in their indoor environment.
- Harvesting – How to collect your fruit safely and how to maximise crop growth for the future.
Green peppers are ready to pick when they feel firm to the touch and they have become heavy.
Before picking, Red Peppers should be rich in colour
Check your variety and do not pick the pepper until the colour is correct to that variety.
Harvest peppers by trimming the stems 1-2 inch away from the cap of the pepper.
Although it is very difficult – growing peppers indoors can be achieved by following these guidelines and providing the appropriate environment for your plants.