Seeds are planted indoors in the spring or outdoors after all danger of frost has passed. Spread seeds over the soil and cover with 1/2-inch loose soil. Planting seeds more than 1/2-inch deep will prevent them from germinating.
Grow basil from seed, as young seedlings do not transplant well. Plant 12 to 15 seeds per foot of garden area. Space purchased basil plants in outdoor gardens 12 to 18 inches apart. Young seedlings can be planted in containers with other herbs 8 to 12 inches apart.
Basil seeds begin to germinate in five to 10 days, then begin growing rapidly. Basil requires well-drained soil and full sun when planted outdoors. Place the containers in a sunny window when they are grown indoors or brought in for the winter.