Fabaceae

Lathyrus

LATH-ih-rus Audio
Lathyrus odoratus

Lathyrus is a genus of 150 species of annuals and perennials, including the beloved sweet pea ( L. odoratus ). The flowers are pea-like, often sweetly scented, and come in many colors, from white to near black. Many species climb with tendrils. Grow on a trellis, through shrubs, on a bank, or in a rock garden, woodland garden, or border.

Noteworthy CharacteristicsShowy, pea-like flowers that are often fragrant. Seeds are mildly toxic.

CareSite in full sun or light shade in fertile, organically rich, well-drained soil. Provide support if necessary and deadhead regularly.

PropagationBefore sowing, soak seeds in water and then plant in a cold frame in early spring, or sow annual seed in the garden in mid-spring. Divide perennials in early spring.

ProblemsPythium root rot, powdery mildew, rust, gray mold, and various leaf spots are common. Slugs and snails may prey on new growth.

Species and cultivars

More From the Plant Guide

Winter Interest

Partial Shade

Browse the Full Plant Guide