About
An annual climber, up to around 2.4m high, with curling tendrils and pairs of green leaves. Strongly scented, large flowers in a blend of bright red and pink are produced in summer.
About the genus
Lathyrus can be annuals or herbaceous or evergreen perennials, mostly climbing, with pinnate leaves ending in a tendril, and showy pea-like flowers, fragrant in some species
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, West-facing
ExposureSheltered
UK hardinessH3
Plant details
Plant typeClimber Wall Shrub, Annual Biennial
HabitClimbing
FoliageDeciduous
Height1.5-2.5 metres
Spread0.1-0.5 metres
Time to full height1 year
Suggested usesCity and courtyard gardens, Cottage and informal garden, Patio and container plants
FragranceFlower
ToxicityPods and seeds are not edible. Wear gloves and other protective equipment when handling. Pets: Pods and seeds are not edible. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Care notes
CultivationGrow in humus-rich, fertile, well-drained soil in full sun or light dappled shade. Provide support and feed with a general liquid fertiliser every two weeks when in growth. See sweetpea cultivation for more detailed advice
PruningFor a long and regular supply of blooms, cut flowers frequently, before they produce seed pods
PropagationPropagate by seed: in milder areas sow during autumn, and overwinter the young plants in a cold frame or unheated glasshouse, or in colder areas sow in late March or April. Plant out when risk of frost has passed
Pest resistanceMay be susceptible to aphids, slugs and snails
Disease resistanceMay be susceptible to powdery mildews, Fusarium wilt and sweet pea viruses