Sweet William Catchfly is a showy, self-seeding annual flower native to Europe with blue-green leaves and a long succession of purplish-pink flowers from late spring into summer. Sometimes called Lobel's Catchfly or None-So-Pretty, it was established in American gardens by the 1820's. The 1804 broadside of Philadelphia nurseryman Bernard McMahon offered seed for both red and white forms.

Sow seeds indoors 6-8 weeks before last frost at 70 degrees F. Transplant to cell-packs or small pots once they have several true leaves, then transplant to well-drained soil after all danger of frost has passed. Seeds can also be direct-sown after the last spring frost. Approximately 250 seeds per packet.