In 1811 Jefferson planted Lathyrus odoratus seeds sent to him by André Thouin of Paris. The sweet pea is another flower associated with old, particularly English, gardens. But, it was popular enough in this country that Bernard McMahon listed five varieties in The American Gardener's Calendar.
Typical Blooming Dates: May - July
Color(s): Pink, White, Purple
Location at Monticello: West Lawn