Sweet William Catchfly (Silene armeria)
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 1820s. The 1804 broadside of Philadelphia nurseryman Bernard McMahon offered seed for both red and white forms.
For more information & the possible availability
Contact The Tho Jefferson Center for Historic Plants or The Shop at Monticello