I have supplied an easy graphic for you on 10 Tips for Growing Peppers that you can keep handy so you are guaranteed those delicious sweet and spicy summer peppers all season long.
#1 Plant where they will get at least 10 hours of direct sunlight.
#2 Leave about 18-20” space between each plant to allow for air to circulate. Hot Pepper cultivars need less room in between plants than sweeter varieties.