Small containers are perfect for putting on the window sill inside, while larger containers are great for outside since they will hold moisture longer.
Basil likes constant moisture but will struggle in soil that’s too wet or too dry. An organic vegetable potting soil will work best in pots.
Basil loves warmth and the sun. Six hours of sun per day is the minimum recommended. A sunny spot on the patio during the late spring and into summer is perfect.
Basil seeds do require sunlight to germinate, so make sure to only cover them with about a quarter-inch of soil.
Frequent watering is important for basil, but don’t overdo it.
As long as your pot drains easily, you shouldn’t have to worry too much about overwatering.