A hardy, twining herbaceous perennial pea from southern Europe that climbs or scrambles over other plants, bearing magenta-pink late-summer flowers. It is an unscented perennial relative of the annual sweet pea, grown for its vigorous, long-lived habit.
Family
Fabaceae (Pea & bean family)
Grows as
Tree, Annual, Perennial
Light
Full sun, Part shade
Water
Water regularly while establishing, then moderately; it tolerates dry spells once established.
Soil
Well-drained, moderately fertile soil; tolerates a range of soils.
Temperature
Hardy to about -20 °C; grows well in temperate climates.
How easy
Easy
Native range
SE. Europe
Climate
temperate
About
Lathyrus grandiflorus, two-flowered everlasting pea, is a species of flowering plant in the family Fabaceae, native to southern Europe. Growing to 2 m (6.6 ft) tall, it is a twining herbaceous perennial with grey-green leaves and, in late summer, bright magenta-pink flowers, the central keel a darker red. Unlike its cousin, the annual sweet pea (Lathyrus odoratus), it is unscented. Once established it is a robust plant with the ability to scramble into other shrubs and trees. It is very hardy, down to −20 °C (−4 °F), so is capable of surviving conditions in most temperate regions of the world.
In the UK it has gained the Royal Horticultural Society's Award of Garden Merit.
Text excerpted from the Wikipedia article Lathyrus grandiflorus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.