The silver dollar plant is an easy biannual to grow, blooming about the second year. They will self-seed if they are left to drop on the ground. Each pod has a least 3 or more seeds. There will be plenty of seeds to save and share.
Near the foundation, I've had plants green throughout a Vermont winter. In the Spring, the small rich purple flowers add fresh color to the landscape. I suggest keeping a picture of the plant on the fridge because its too easy to grab the young plants when you are weeding.
When the pods dry, gently move each side back and forth between your fingers to release the outer pod cover. The seeds will then fall out. Easy to grow. Easy to harvest seeds. Easy on the eyes, dry pod skins are paper thin and silvery white. The bouquet below is harvested from two plants. They grow to about 3 feet tall and have long and short stems. In Winter arrangements they add a classy touch through their delicate personality.