Lathyrus grandiflorus Sm.

Taxonomy and Common Names

Lathyrus grandiflorus, commonly known as two-flowered everlasting pea, is a flowering plant species in the legume family Fabaceae that is native to southern Europe.

Growth Habit

This plant is a twining herbaceous perennial that grows up to 2 metres (6.6 feet) tall.

Foliage and Flower Characteristics

It has grey-green leaves, and produces bright magenta-pink flowers with a darker red central keel in late summer.

Scent Comparison

Unlike its close relative, the annual sweet pea Lathyrus odoratus, Lathyrus grandiflorus does not have a noticeable scent.

Established Growth Behavior

Once it is established, it grows as a robust plant that can scramble over other shrubs and trees.

Cold Hardiness and Range

It is extremely hardy, tolerating temperatures as low as −20 °C (−4 °F), so it can survive growing conditions in most temperate regions across the world.

Horticultural Award

In the United Kingdom, this plant has been awarded the Royal Horticultural Society's Award of Garden Merit.