I used the whole packet in an area of about 15 square feet and they look gorgeous. Each seed will produce about 3 flowers if you clip the tallest flower first. I have 5 vases of flowers in my house and could make 10 more vases full next week and the week after. I started these on July 4th in zone 6, had flowers before the end of August, so 45-5o days from seed to first full blooms in average top soil with a capful of osmocote plant food. Very impressive !