How Many Plants per Square Foot ?

If you intend to plant 4″ apart on center, you will need 9 plants per square foot. If you plant 5″ apart on center, you will need approximately 6 plants per square foot. If you plant 6″ apart on center, you will need 4 plants per square foot. If you plant 8″ on center, you will need approximately 2.3 plants per square foot.