Planting two different varieties of peppers next to each other isn’t wise. They cross. This is why I went to pepper container gardening.
My favorite peppers were the colored bells. Unlike green peppers, they are not bitter. The different colors have slightly different tastes. And they are pretty.
Then a friend talked me into trying a Macedonian pepper. This is another sweet pepper (I don’t grow hot peppers.). It is a long horn shape turning from green to lime green to yellow green to rose red. It is delicious.
Two more Macedonian peppers have joined my line up. I still grow the colored bells as I like them too. I needed to have a place to grow the new pepper away from the garden where the bell peppers grow. Containers were the answer.
There are several considerations for pepper container gardening.

Location
Peppers like very warm and sunny places. Here in the Ozarks all day sun is not necessary, but half the day is minimum.
Choosing the location is vital for pepper container gardening as, once the containers are filled, moving them is difficult.
As I have three varieties of peppers to consider, I need three locations separate enough to discourage cross pollination. In front of the house, on the sunny side of the house and behind the house work for me. All get shade part of the day, but sun most of the day during the summer.

Containers
Since I grow four plants in each container, I need a big container. Bigger containers don’t heat up in the sun as much preventing the roots from cooking.
My containers are the empty plastic tubs sold filled with cow licks. My feed store buys them back empty from cattlemen and resells them to gardeners like me. The owner also uses a line of them to grow left over transplants for himself and customers who want a quick snack as they go into the store.
Drilling five or six half inch holes in the bottom provides drainage.
Setting Up
Drainage is important. Putting a couple of half size cement blocks or a few bricks under the container helps.
Next the pepper container needs gravel. A larger piece goes over each hole. Four to six inches of inch size gravel goes in on top. This will, in a few years, clog with dirt and need replacing.
Soil comes next. I mix mine. My mixture has one part creek sand, one part composted goat manure and two parts dirt in it. The amounts are not exact. Part of the mix is removed and replaced each year with more compost.
Leave three or four inches clear at the top to hold water in the container.

Adding Pepper Plants
I space four plants around the container three or four inches from the edge. It’s a good idea to have a stout pole in the center to tie the plants to.
The Ozarks can be a windy place. I have used circles of fence wire, but this needs anchoring too.
Growing Considerations
Pepper container gardening is different from garden based pepper growing. I do mulch my containers to help control weeds, hold in moisture and keep the soil cooler. The containers need watering every other if not every day.
With a little planning pepper container gardening can yield enough peppers to spice up every meal and put plenty in the freezer.