Fantastic germination rate. Prolific spread year after year.
"A few years ago I planted these in several cottage gardens. The following year their blooms were eye-catching bright. I was stunned by how quickly the seeds spread in subsequent years. I recommend sowing them along with yellow flowers in bloom concurrently because they're so bright they can otherwise visually overwhelm a garden. With the right complimentary colors, they're fantastic. A high germination rate and tendency to spread turns what seems a very high price into a great value in subsequent years."