| Perennial Pea Seeds ( Lathyrus latifolius ). Perennial Pea is an early summer-flowering vine that Jefferson sowed in one of the oval beds at Monticello in 1807. It was an established garden plant in America before 1720. Perennial pea is a long-lived vigorous climber with attractive blue-green leaves and showy flowers in red, pink, or rarely, white. Although European in origin, it has naturalized in many parts of the United States, especially on roadsides. Sow seeds directly outdoors in spring. Sunny, well-drained sites give best results. Vines... - Perennial Pea Seeds ( Lathyrus latifolius ). |