African Marigold (Tagetes erecta)
Thomas Jefferson planted seeds of the African Marigold along the winding walk flower border on April 8, 1812. Although native to South America, the first garden plants introduced into Europe came from Northern Africa: hence, the common name. While double garden forms were common around 1800, this is the species, or wild form, of African Marigold with unusual (and rare) single, yellow flowers.
For more information & the possible availability
Contact The Tho Jefferson Center for Historic Plants or The Shop at Monticello